CN116026189B - Guidance method, system, medium and equipment for air defense of cluster target tail end - Google Patents
Guidance method, system, medium and equipment for air defense of cluster target tail end Download PDFInfo
- Publication number
- CN116026189B CN116026189B CN202310155452.6A CN202310155452A CN116026189B CN 116026189 B CN116026189 B CN 116026189B CN 202310155452 A CN202310155452 A CN 202310155452A CN 116026189 B CN116026189 B CN 116026189B
- Authority
- CN
- China
- Prior art keywords
- cluster
- target
- interception
- module
- clusters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007123 defense Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005259 measurement Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 8
- 238000000638 solvent extraction Methods 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention provides a guidance method, a system, a medium and equipment for air defense of a cluster target end, which comprise the following steps: step 1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation; step 2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster; step 3: the array is split into K now subarrays, the subarrays independently generate regional level wide beams, the interception clusters are dynamically tracked, and continuous guidance irradiation is provided for the interception bomb. The invention avoids the limitation of multiple target channels while an air defense system, can reduce the requirement of target tracking precision and shorten the guidance response time.
Description
Technical Field
The invention relates to the technical field of guidance detection, in particular to a guidance method, a system, a medium and equipment for air defense of a cluster target tail end.
Background
Terminal air defense is a key ring of air defense, and is the 'last defense line' of air combat. In recent years, a cluster striking mode represented by unmanned aerial vehicle formation striking and rocket projectile shooting attack has become a novel threat facing terminal anti-air combat, and an omnidirectional saturation threat is generated for defending the combat. Therefore, the terminal air defense needs to have strong multi-target guidance detection capability at the same time so as to prevent the utilization of the number advantage of the incoming targets.
Patent document CN108460509B (application number: CN 201711384688.8) discloses a method and a system for optimizing and controlling the air-defense resource scheduling of a fleet in a dynamic environment, which are used for evaluating the disturbance type and intensity in the task execution process and realizing the optimizing and controlling the air-defense resource scheduling of the fleet by utilizing the combination of global static optimization and local dynamic adjustment according to the disturbance type and intensity.
From the aspect of guidance, the radio instruction guidance is highly dependent on the performance of guidance radar, and cannot provide accurate guidance for a large number of intercepted weapons at the same time; active radar guidance has limited acting distance to a weak characteristic target, and meanwhile, the cost of the active radar guidance is still high in a short period; the semi-active radar guidance system has limited multi-target capability, and is difficult to consider the quantity and the precision; the infrared guidance system is not suitable for slow flight threat, and the environment has a larger influence on the performance.
Therefore, in order to deal with the threat of the omni-directional saturation attack of the terminal cluster air defense, a high-capacity, fast-response and strong-reliability guidance detection method needs to be provided, and the terminal air defense system is supported to form large-scale countermeasure capability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a guidance method, a system, a medium and equipment for preventing the tail end of a cluster target from being empty.
The guidance method for the air defense of the tail end of the cluster target provided by the invention comprises the following steps:
step 1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation;
Step 2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster;
Step 3: the array is split into K now subarrays, the subarrays independently generate regional level wide beams, the interception clusters are dynamically tracked, and continuous guidance irradiation is provided for the interception bomb.
Preferably, the step 1 includes:
Step 1.1: after the multifunctional radar obtains the range of the air defense responsibility area, starting the full array resource, setting the beam as a high-gain narrow beam, and pointing the beam to the initial coordinate of the ground coordinate system;
Step 1.2: the method comprises the steps that A period echo accumulation and moving target detection processing are completed in a multifunctional radar, the energy distribution of radar echo in the distance and speed dimensions is obtained, and the value of A needs to be satisfied: And Where T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width;
Step 1.3: performing target detection on the energy distribution through a multifunctional radar, and extracting and storing angle, distance and speed information of a target if the target exists; if the target does not exist, directly entering the step 1.4;
Step 1.4: and (3) switching the search angle for the multifunctional radar, repeatedly executing the steps 1.2 and 1.3, firstly traversing the pitching direction for the search pointing angle, and then traversing the azimuth direction, covering all the air defense responsible airspace, wherein the interval between different pointing angles is not more than 3dB beam width w full under the cooperation of the full array.
Preferably, the step 2 includes:
Step 2.1: setting the number K of interception clusters, and selecting any K different targets c k in the clusters as the centers of the initial clusters K=1, 2, …, K, the angle between the target direction and the ground is the pitch angle θ, the angle between the target direction and the antenna normal is the azimuth angle
Step 2.2: calculating included angles alpha n,k from all N targets to K cluster centers of the cluster, respectively selecting a cluster center with the smallest included angle with each target aiming at each target, recording a classification scheme P n,K of the target and an included angle value min (alpha n,K) between the target and the corresponding cluster center, wherein n=1, 2, …, N and N are the number of end cluster threats;
step 2.3: calculating the central coordinates of the targets in K clusters as updated central coordinates Calculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the step 2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (α n,K);
Step 2.4: repeatedly executing the step 2.2 and the step 2.3, so that the number K of interception clusters covers the range of the multi-target tracking number while the multi-functional radar is covered;
step 2.5: according to the stored data, respectively calculating maximum values alpha_max k of included angles in N clusters corresponding to the number K of different interception clusters to determine the number K now of the end air defense interception clusters and the central coordinates of the interception clusters And the corresponding target partitioning scheme P now,Know are meetingThe minimum value is taken under the condition that, among them,For the multi-functional radar subarray level 3dB wave beam width, the cluster target classification scheme P now of the end defense is then made to be a scheme corresponding to the number of interception clusters K now
Preferably, the step 3 includes:
Step 3.1: determining the number of array elements of the subarray as Wherein M is the number of array elements of the full array, K now is the number of the end air defense interception clusters, and [ (DEG ] represents a rounding operator to zero;
Step 3.2: sub-array acquisition of respective intercept cluster center coordinates As the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped;
Step 3.3: the subarray adjusts beam direction, 1 sum beam and 2 difference beams are generated, distance and speed parameter measurement is completed based on sum beam data, amplitude comparison single pulse angle measurement is completed based on sum and difference three beam data, and the direction of the sum and difference three beams is dynamically adjusted according to an angle measurement result, so that a tracking beam always covers an interception cluster airspace range;
Step 3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing;
step 3.5: and (3) continuously executing the steps 3.3 and 3.4 by the multifunctional radar and interception bomb guide head in the tracking guidance process until the interception combat is completed.
The invention provides a guidance system for preventing air at the tail end of a cluster target, which comprises the following components:
module M1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation;
Module M2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster;
Module M3: the array is split into K now subarrays, the subarrays independently generate regional level wide beams, the interception clusters are dynamically tracked, and continuous guidance irradiation is provided for the interception bomb.
Preferably, the module M1 comprises:
module M1.1: after the multifunctional radar obtains the range of the air defense responsibility area, starting the full array resource, setting the beam as a high-gain narrow beam, and pointing the beam to the initial coordinate of the ground coordinate system;
module M1.2: the method comprises the steps that A period echo accumulation and moving target detection processing are completed in a multifunctional radar, the energy distribution of radar echo in the distance and speed dimensions is obtained, and the value of A needs to be satisfied: And Where T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width;
module M1.3: performing target detection on the energy distribution through a multifunctional radar, and extracting and storing angle, distance and speed information of a target if the target exists; if the target does not exist, directly entering a module M1.4;
Module M1.4: and switching the search angle for the multifunctional radar, repeatedly executing the module M1.2 and the module M1.3, traversing the pitching direction and traversing the azimuth direction for the search pointing angle, covering all the air defense responsible airspace, and enabling the interval between different pointing angles to be not more than 3dB beam width w full under the cooperation of the full array.
Preferably, the module M2 comprises:
Module M2.1: setting the number K of interception clusters, and selecting any K different targets c k in the clusters as the centers of the initial clusters K=1, 2, …, K, the angle between the target direction and the ground is the pitch angle θ, the angle between the target direction and the antenna normal is the azimuth angle
Module M2.2: calculating included angles alpha n,k from all N targets to K cluster centers of the cluster, respectively selecting a cluster center with the smallest included angle with each target aiming at each target, recording a classification scheme P n,K of the target and an included angle value min (alpha n,K) between the target and the corresponding cluster center, wherein n=1, 2, …, N and N are the number of end cluster threats;
module M2.3: calculating the central coordinates of the targets in K clusters as updated central coordinates Calculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the module M2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (α n,K);
Module M2.4: repeatedly executing the module M2.2 and the module M2.3 to enable the number K of interception clusters to cover the range of the multi-target tracking number while the multi-functional radar is in use;
Module M2.5: according to the stored data, respectively calculating maximum values alpha_max k of included angles in N clusters corresponding to the number K of different interception clusters to determine the number K now of the end air defense interception clusters and the central coordinates of the interception clusters And the corresponding target partitioning scheme P now,Know are meetingThe minimum value is taken under the condition that, among them,For the multi-functional radar subarray level 3dB wave beam width, the cluster target classification scheme P now of the end defense is then made to be a scheme corresponding to the number of interception clusters K now
Preferably, the module M3 includes:
module M3.1: determining the number of array elements of the subarray as Wherein M is the number of array elements of the full array, K now is the number of the end air defense interception clusters, and [ (DEG ] represents a rounding operator to zero;
module M3.2: sub-array acquisition of respective intercept cluster center coordinates As the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped;
module M3.3: the subarray adjusts beam direction, 1 sum beam and 2 difference beams are generated, distance and speed parameter measurement is completed based on sum beam data, amplitude comparison single pulse angle measurement is completed based on sum and difference three beam data, and the direction of the sum and difference three beams is dynamically adjusted according to an angle measurement result, so that a tracking beam always covers an interception cluster airspace range;
Module M3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing;
Module M3.5: the multifunctional radar and interception bomb guide head in the tracking guidance process continuously executes the module M3.3 and the module M3.4 until the interception combat is completed.
According to the invention, a computer readable storage medium is provided, wherein the computer program is stored, and when being executed by a processor, the computer program realizes the steps of the guidance method for the end of a cluster target to prevent air traffic.
The electronic equipment provided by the invention comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the computer program realizes the steps of the guidance method for the end air defense of the cluster target when being executed by the processor.
Compared with the prior art, the invention has the following beneficial effects:
(1) The beam reconstruction capability of the array antenna is fully exerted, and the beam width is flexibly adjusted by integrating and splitting the array, so that the method can adapt to the coverage requirements of different stages of guided detection.
(2) The cluster targets are simplified and processed by taking the cluster as the minimum unit in the tracking and guiding process, so that the integral tracking and guiding of the cluster targets can be provided, and the limitation of multiple target channels while an air defense system is avoided.
(3) The radar can realize the integration of the search, tracking and guidance functions, simplify the construction of combat equipment, reduce combat information nodes and contribute to the improvement of the response speed of the air defense system.
(4) Through the working frequency point binding, a large number of interception bombs can be rapidly specified, and the method has the advantage of expanding the interception scale.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of a cluster target end air defense method of the present invention;
FIG. 2 is a schematic diagram of a ground coordinate system employed in the present invention;
FIG. 3 is a complete array structure of the multifunctional radar in the embodiment;
FIG. 4 is a pitch search schematic of example step 1;
FIG. 5 is a schematic diagram of the azimuth search of embodiment step 1;
FIG. 6 is a cluster threat situation map captured by an embodiment multi-function radar;
FIG. 7 is a graph showing the relationship between the maximum intra-cluster included angle and the subarray beam width according to the number K of the interception clusters;
FIG. 8 is a target partitioning scheme for an embodiment intercepting the number of clusters;
FIG. 9 is a diagram of an embodiment multi-functional radar subarray partitioning scheme;
fig. 10 is a diagram illustrating the coverage of a cluster target by a wide beam.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Example 1:
As shown in fig. 1, the invention discloses a guidance method for preventing a cluster target end from being empty, which comprises the following key steps: the multi-functional radar full array cooperates, realize the perception of wide area situation; the multi-functional radar prefers the number of interception clusters, and determines an interception cluster division scheme; the multifunctional radar subarray independently tracks and guides, and supports the interception bomb guide head to approach and detect.
For ease of calculation and description, the present invention uses a ground coordinate system as shown in fig. 2. The ground coordinate system takes the multifunctional radar as a coordinate origin, the included angle between the target pointing direction and the ground is a pitch angle theta, and the included angle between the target pointing direction and the normal direction of the antenna is an azimuth angleThe azimuth angle is a positive direction along the clockwise direction, and is a coordinate system referred when acquiring the cluster threat situation and dividing the blocking cluster scheme;
the multifunctional radar array of this embodiment adopts a 486-element triangular grid structure, and the intervals between the elements are 0.5λ (wavelength), as shown in fig. 3. The embodiment end cluster threat number n=300, and the guidance method includes the following steps:
Step 1: the multi-functional radar full array cooperates, use the high-gain wave beam to carry out the search task in the space domain of air defense responsibility, catch the cluster goal and measure quantity, angle, distance, speed parameter with high accuracy, produce the situation map of the cluster threat, including the following substeps:
step 1.1: the range of the air defense responsibility area of the embodiment obtained by the multifunctional radar is a ground coordinate system theta=5-90 degrees, The distance R=6 km-10 km, then the full array resource is enabled and the beam is set as a high gain narrow beam, the beam is directed to the initial coordinate of the ground coordinate system
Step 1.2: the multifunctional radar finishes the echo accumulation and moving target detection processing of A periods, and obtains the energy distribution of radar echoes in the distance and speed dimensions. To reduce the processing loss, the value of A needs to satisfyAndWhere T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width.
The radar parameter settings in this embodiment are as in table 1:
according to the formula of this step, the value of a in this embodiment is 128.
Step 1.3: the multifunctional radar detects targets according to the energy distribution, and if targets exist, the angle, distance and speed information of the targets are extracted and stored; if the target does not exist, directly entering the step 1.4;
Step 1.4: the multifunctional radar switches the search angle, and repeatedly executes the processes of the step 1.2 and the step 1.3, the search pointing angle traverses the pitching direction by 5 degrees to 90 degrees firstly, and then traverses all air defense responsible airspaces of the azimuth direction by-90 degrees to 90 degrees, as shown in fig. 4 and 5, the interval between different pointing angles is not more than 3dB beam width w full under the cooperation of the full array. In this embodiment, after the search of the air defense responsible airspace is completed, a cluster threat situation is obtained, as shown in fig. 6, and the color depth is used to represent the target distance parameter.
Step 2: the multifunctional radar calculates the optimal interception cluster number K now according to the cluster threat airspace distribution situation, and determines a corresponding interception cluster division scheme, so that targets in a cluster only belong to one interception cluster, and the method comprises the following substeps:
Step 2.1: setting the number K of interception clusters, and selecting any K different targets in the clusters as initial cluster centers
k＝1,2,…,K；
Step 2.2: calculating included angles alpha n,k, n=1, 2, …,300, k=1, 2, … and K from all 300 targets of the cluster to K cluster centers, respectively selecting the cluster center with the smallest included angle (namely finishing classification in K categories) for each target, and recording classification schemes P n,K, n=1, 2, …,300 of the targets and included angle values min (alpha n,K) between the targets and the corresponding cluster centers, wherein n=1, 2, … and 300;
step 2.3: calculating the central coordinates of the targets in K clusters as updated central coordinates Calculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the step 2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (a n,K). Wherein, the threshold th is generally smaller than the average included angle value of the cluster targets;
Step 2.4: repeatedly executing the steps 2.2 and 2.3, so that the number K of interception clusters covers the range of the multi-target tracking number while the multi-functional radar of the embodiment, wherein K=1, 2, … and 10;
Step 2.5: according to the data stored in the above steps, respectively calculating maximum values alpha_max k, k=1, 2, … and 10 of 300 intra-cluster included angles corresponding to the number K of different interception clusters to determine the number K now of the end anti-air interception clusters and the central coordinates of the interception clusters And the corresponding target partitioning scheme P now;Know are meetingThe minimum value is taken under the condition that, among them,3DB beam width is the level of the multifunctional radar subarrays; subsequently, let the cluster target classification scheme P now of the end defense be the scheme corresponding to the number of interception clusters K now In this embodiment, the number of blocking clusters K now is 6, as shown in fig. 7, the center coordinates of the corresponding blocking clusters are shown in table 2, and the corresponding blocking cluster dividing scheme is adoptedAs shown in fig. 8.
Example intercept cluster center coordinates are as in table 2:
Step 3: the multi-functional radar splits the array into K now subarrays, and the subarrays independently generate regional level wide wave beams, dynamically track the interception cluster, simultaneously provide continuous guidance irradiation for the interception bomb, and the interception bomb guide head adopts a semi-active radar guide body to acquire the center of the interception cluster and specific interception target guidance parameters, and comprises the following substeps:
Step 3.1: determining the number of array elements of the subarray as Wherein M is the number of array elements of the full array, [. Cndot. ] represents a rounding operator to zero; the number of the horizontal array elements and the longitudinal array elements of the subarray C x、Cy is as followsAnd min (C x+Cy) together, wherein in the embodiment, C x、Cy is 9, and the subarray division form is shown in figure 9;
Step 3.2: sub-array acquisition of respective intercept cluster center coordinates As the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped;
Step 3.3: the subarray adjusts beam direction, generates 1 combined beam and 2 difference beams, completes measurement of distance and speed parameters based on sum beam data, and completes measurement of amplitude comparison single pulse angle based on sum and difference beam data; the direction of the sum and difference three beams is dynamically adjusted according to the angle measurement result, so that the tracking beam always covers the airspace range of the interception cluster, as shown in fig. 10;
Step 3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing;
step 3.5: and (3) continuously executing the steps 3.3 and 3.4 by the multifunctional radar and interception bomb guide head in the tracking guidance process until the interception combat is completed.
Example 2:
The invention also provides a guidance system for the end of the cluster target, which can be realized by executing the flow steps of the guidance method for the end of the cluster target, namely, the guidance method for the end of the cluster target can be understood as a preferred implementation mode of the guidance system for the end of the cluster target by a person skilled in the art.
The invention provides a guidance system for preventing air at the tail end of a cluster target, which comprises the following components: module M1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation; module M2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster; module M3: the array is split into K now subarrays, the subarrays independently generate regional level wide beams, the interception clusters are dynamically tracked, and continuous guidance irradiation is provided for the interception bomb.
The module M1 includes: module M1.1: after the multifunctional radar obtains the range of the air defense responsibility area, starting the full array resource, setting the beam as a high-gain narrow beam, and pointing the beam to the initial coordinate of the ground coordinate system; module M1.2: the method comprises the steps that A period echo accumulation and moving target detection processing are completed in a multifunctional radar, the energy distribution of radar echo in the distance and speed dimensions is obtained, and the value of A needs to be satisfied: And Where T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width; module M1.3: performing target detection on the energy distribution through a multifunctional radar, and extracting and storing angle, distance and speed information of a target if the target exists; if the target does not exist, directly entering a module M1.4; module M1.4: and switching the search angle for the multifunctional radar, repeatedly executing the module M1.2 and the module M1.3, traversing the pitching direction and traversing the azimuth direction for the search pointing angle, covering all the air defense responsible airspace, and enabling the interval between different pointing angles to be not more than 3dB beam width w full under the cooperation of the full array.
The module M2 includes: module M2.1: setting the number K of interception clusters, and selecting any K different targets c k in the clusters as the centers of the initial clustersK=1, 2, …, K, the angle between the target direction and the ground is the pitch angle θ, the angle between the target direction and the antenna normal is the azimuth angleModule M2.2: calculating included angles alpha n,k from all N targets to K cluster centers of the cluster, respectively selecting a cluster center with the smallest included angle with each target aiming at each target, recording a classification scheme P n,K of the target and an included angle value min (alpha n,K) between the target and the corresponding cluster center, wherein n=1, 2, …, N and N are the number of end cluster threats; module M2.3: calculating the central coordinates of the targets in K clusters as updated central coordinatesCalculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the module M2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (α n,K); module M2.4: repeatedly executing the module M2.2 and the module M2.3 to enable the number K of interception clusters to cover the range of the multi-target tracking number while the multi-functional radar is in use; module M2.5: according to the stored data, respectively calculating maximum values alpha_max k of included angles in N clusters corresponding to the number K of different interception clusters to determine the number K now of the end air defense interception clusters and the central coordinates of the interception clustersAnd the corresponding target partitioning scheme P now,Know are meetingThe minimum value is taken under the condition that, among them,For the multi-functional radar subarray level 3dB wave beam width, the cluster target classification scheme P now of the end defense is then made to be a scheme corresponding to the number of interception clusters K now
The module M3 includes: module M3.1: determining the number of array elements of the subarray asWherein M is the number of array elements of the full array, K now is the number of the end air defense interception clusters, and [ (DEG ] represents a rounding operator to zero; module M3.2: sub-array acquisition of respective intercept cluster center coordinatesAs the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped; module M3.3: the subarray adjusts beam direction, 1 sum beam and 2 difference beams are generated, distance and speed parameter measurement is completed based on sum beam data, amplitude comparison single pulse angle measurement is completed based on sum and difference three beam data, and the direction of the sum and difference three beams is dynamically adjusted according to an angle measurement result, so that a tracking beam always covers an interception cluster airspace range; module M3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing; module M3.5: the multifunctional radar and interception bomb guide head in the tracking guidance process continuously executes the module M3.3 and the module M3.4 until the interception combat is completed.
Those skilled in the art will appreciate that the systems, apparatus, and their respective modules provided herein may be implemented entirely by logic programming of method steps such that the systems, apparatus, and their respective modules are implemented as logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc., in addition to the systems, apparatus, and their respective modules being implemented as pure computer readable program code. Therefore, the system, the apparatus, and the respective modules thereof provided by the present invention may be regarded as one hardware component, and the modules included therein for implementing various programs may also be regarded as structures within the hardware component; modules for implementing various functions may also be regarded as being either software programs for implementing the methods or structures within hardware components.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (8)
1. A guidance method for air defense of a cluster target end, comprising:
step 1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation;
Step 2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster;
Step 3: splitting the array into K now subarrays, wherein the subarrays independently generate regional level wide beams, dynamically tracking interception clusters, and simultaneously providing continuous guidance irradiation for interception bullets;
The step 2 comprises the following steps:
Step 2.1: setting the number K of interception clusters, and selecting any K different targets c k in the clusters as the centers of the initial clusters K=1, 2, …, K, the angle between the target direction and the ground is the pitch angle θ, the angle between the target direction and the antenna normal is the azimuth angle
Step 2.2: calculating included angles alpha n,k from all N targets to K cluster centers of the cluster, respectively selecting a cluster center with the smallest included angle with each target aiming at each target, recording a classification scheme P n,K of the target and an included angle value min (alpha n,K) between the target and the corresponding cluster center, wherein n=1, 2, …, N and N are the number of end cluster threats;
step 2.3: calculating the central coordinates of the targets in K clusters as updated central coordinates Calculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the step 2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (α n,K);
Step 2.4: repeatedly executing the step 2.2 and the step 2.3, so that the number K of interception clusters covers the range of the multi-target tracking number while the multi-functional radar is covered;
step 2.5: according to the stored data, respectively calculating maximum values alpha_max k of included angles in N clusters corresponding to the number K of different interception clusters to determine the number K now of the end air defense interception clusters and the central coordinates of the interception clusters And the corresponding target partitioning scheme P now,Know are meetingThe minimum value is taken under the condition that, among them,For the multi-functional radar subarray level 3dB wave beam width, the cluster target classification scheme P now of the end defense is then made to be a scheme corresponding to the number of interception clusters K now
2. The guidance method for clustered target end air defense according to claim 1, wherein step 1 comprises:
Step 1.1: after the multifunctional radar obtains the range of the air defense responsibility area, starting the full array resource, setting the beam as a high-gain narrow beam, and pointing the beam to the initial coordinate of the ground coordinate system;
Step 1.2: the method comprises the steps that A period echo accumulation and moving target detection processing are completed in a multifunctional radar, the energy distribution of radar echo in the distance and speed dimensions is obtained, and the value of A needs to be satisfied: And Where T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width;
Step 1.3: performing target detection on the energy distribution through a multifunctional radar, and extracting and storing angle, distance and speed information of a target if the target exists; if the target does not exist, directly entering the step 1.4;
Step 1.4: and (3) switching the search angle for the multifunctional radar, repeatedly executing the steps 1.2 and 1.3, firstly traversing the pitching direction for the search pointing angle, and then traversing the azimuth direction, covering all the air defense responsible airspace, wherein the interval between different pointing angles is not more than 3dB beam width w full under the cooperation of the full array.
3. The guidance method for clustered target end air defense according to claim 1, wherein the step 3 comprises:
Step 3.1: determining the number of array elements of the subarray as Wherein M is the number of array elements of the full array, K now is the number of the end air defense interception clusters, and [ (DEG ] represents a rounding operator to zero;
Step 3.2: sub-array acquisition of respective intercept cluster center coordinates As the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped;
Step 3.3: the subarray adjusts beam direction, 1 sum beam and 2 difference beams are generated, distance and speed parameter measurement is completed based on sum beam data, amplitude comparison single pulse angle measurement is completed based on sum and difference three beam data, and the direction of the sum and difference three beams is dynamically adjusted according to an angle measurement result, so that a tracking beam always covers an interception cluster airspace range;
Step 3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing;
step 3.5: and (3) continuously executing the steps 3.3 and 3.4 by the multifunctional radar and interception bomb guide head in the tracking guidance process until the interception combat is completed.
4. A guidance system for clustered target end air defense, comprising:
module M1: performing search tasks in an air defense responsibility airspace by using high-gain beams by adopting multi-functional radar full-array cooperation, capturing cluster targets, measuring quantity, angle, distance and speed parameters, and obtaining a cluster threat airspace distribution situation;
Module M2: according to the cluster threat airspace distribution situation, calculating the optimal interception cluster quantity K now, and determining a corresponding interception cluster division scheme, so that targets in the cluster belong to only one interception cluster;
Module M3: splitting the array into K now subarrays, wherein the subarrays independently generate regional level wide beams, dynamically tracking interception clusters, and simultaneously providing continuous guidance irradiation for interception bullets;
the module M2 includes:
Module M2.1: setting the number K of interception clusters, and selecting any K different targets c k in the clusters as the centers of the initial clusters K=1, 2, …, K, the angle between the target direction and the ground is the pitch angle θ, the angle between the target direction and the antenna normal is the azimuth angle
Module M2.2: calculating included angles alpha n,k from all N targets to K cluster centers of the cluster, respectively selecting a cluster center with the smallest included angle with each target aiming at each target, recording a classification scheme P n,K of the target and an included angle value min (alpha n,K) between the target and the corresponding cluster center, wherein n=1, 2, …, N and N are the number of end cluster threats;
module M2.3: calculating the central coordinates of the targets in K clusters as updated central coordinates Calculating an included angle delta alpha c before and after cluster center coordinate updating, and if delta alpha c is larger than a set threshold th, continuing to execute the module M2.2; if Δαc is smaller than the set threshold th, the center coordinates are storedClassification scheme P n,K and angle value min (α n,K);
Module M2.4: repeatedly executing the module M2.2 and the module M2.3 to enable the number K of interception clusters to cover the range of the multi-target tracking number while the multi-functional radar is in use;
Module M2.5: according to the stored data, respectively calculating maximum values alpha_max k of included angles in N clusters corresponding to the number K of different interception clusters to determine the number K now of the end air defense interception clusters and the central coordinates of the interception clusters And the corresponding target partitioning scheme P now,Know are meetingThe minimum value is taken under the condition that, among them,For the multi-functional radar subarray level 3dB wave beam width, the cluster target classification scheme P now of the end defense is then made to be a scheme corresponding to the number of interception clusters K now
5. The guidance system for clustered target end air defense of claim 4 wherein the module M1 comprises:
module M1.1: after the multifunctional radar obtains the range of the air defense responsibility area, starting the full array resource, setting the beam as a high-gain narrow beam, and pointing the beam to the initial coordinate of the ground coordinate system;
module M1.2: the method comprises the steps that A period echo accumulation and moving target detection processing are completed in a multifunctional radar, the energy distribution of radar echo in the distance and speed dimensions is obtained, and the value of A needs to be satisfied: And Where T r is the pulse repetition period, R w is the range gate width, v tr is the radial velocity of the target relative to the radar, v tt is the tangential velocity of the target relative to the radar, R min is the minimum slant range of the target to the radar, and w full is the beam width;
module M1.3: performing target detection on the energy distribution through a multifunctional radar, and extracting and storing angle, distance and speed information of a target if the target exists; if the target does not exist, directly entering a module M1.4;
Module M1.4: and switching the search angle for the multifunctional radar, repeatedly executing the module M1.2 and the module M1.3, traversing the pitching direction and traversing the azimuth direction for the search pointing angle, covering all the air defense responsible airspace, and enabling the interval between different pointing angles to be not more than 3dB beam width w full under the cooperation of the full array.
6. The guidance system for clustered target end air defense of claim 4 wherein the module M3 comprises:
module M3.1: determining the number of array elements of the subarray as Wherein M is the number of array elements of the full array, K now is the number of the end air defense interception clusters, and [ (DEG ] represents a rounding operator to zero;
module M3.2: sub-array acquisition of respective intercept cluster center coordinates As the initial direction of the tracking wave beam, the working frequency point is determined at the same time, so that the working frequency ranges of all subarrays are not overlapped;
module M3.3: the subarray adjusts beam direction, 1 sum beam and 2 difference beams are generated, distance and speed parameter measurement is completed based on sum beam data, amplitude comparison single pulse angle measurement is completed based on sum and difference three beam data, and the direction of the sum and difference three beams is dynamically adjusted according to an angle measurement result, so that a tracking beam always covers an interception cluster airspace range;
Module M3.4: the interception bomb guide head adopts a semi-active radar guide body, passively receives a direct wave signal from a multifunctional radar and an echo signal reflected by a target, and obtains the center of an interception cluster and guide parameters of a specific interception target after processing;
Module M3.5: the multifunctional radar and interception bomb guide head in the tracking guidance process continuously executes the module M3.3 and the module M3.4 until the interception combat is completed.
7. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the guidance method for clustered target end air defense of any one of claims 1 to 3.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program when executed by the processor implements the steps of the guidance method for cluster target end air defense as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310155452.6A CN116026189B (en) | 2023-02-22 | 2023-02-22 | Guidance method, system, medium and equipment for air defense of cluster target tail end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310155452.6A CN116026189B (en) | 2023-02-22 | 2023-02-22 | Guidance method, system, medium and equipment for air defense of cluster target tail end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116026189A CN116026189A (en) | 2023-04-28 |
| CN116026189B true CN116026189B (en) | 2024-09-17 |
Family
ID=86070886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310155452.6A Active CN116026189B (en) | 2023-02-22 | 2023-02-22 | Guidance method, system, medium and equipment for air defense of cluster target tail end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116026189B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119126804B (en) * | 2024-09-09 | 2025-03-25 | 东南大学 | A method for sea-air cross-domain unmanned swarm escort and formation planning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113268076A (en) * | 2021-03-06 | 2021-08-17 | 南京航空航天大学 | Multi-unmanned aerial vehicle cluster formation cooperative control algorithm |
| CN114742264A (en) * | 2022-03-04 | 2022-07-12 | 上海机电工程研究所 | Networked collaborative air defense task planning method and system for ship formation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196496B1 (en) * | 1998-06-29 | 2001-03-06 | State Of Israel Ministry Of Defense Armament Development Authority Raeael | Method for assigning a target to a missile |
| US6906659B1 (en) * | 2003-12-19 | 2005-06-14 | Tom Ramstack | System for administering a restricted flight zone using radar and lasers |
| EP3349033A1 (en) * | 2017-01-13 | 2018-07-18 | Autoliv Development AB | Enhanced object detection and motion estimation for a vehicle environment detection system |
| KR102211105B1 (en) * | 2020-10-07 | 2021-02-02 | 한화시스템(주) | Target type change apparatus and method for resource management of multifunctional phased array radar in ship combat system |
-
2023
- 2023-02-22 CN CN202310155452.6A patent/CN116026189B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113268076A (en) * | 2021-03-06 | 2021-08-17 | 南京航空航天大学 | Multi-unmanned aerial vehicle cluster formation cooperative control algorithm |
| CN114742264A (en) * | 2022-03-04 | 2022-07-12 | 上海机电工程研究所 | Networked collaborative air defense task planning method and system for ship formation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116026189A (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5061930A (en) | Multi-mode missile seeker system | |
| CN112797846B (en) | Unmanned aerial vehicle prevention and control method and system | |
| CN108398677B (en) | Three-coordinate continuous wave one-dimensional phase scanning unmanned aerial vehicle low-altitude target detection system | |
| CN108490431B (en) | Two-dimensional active phased array target indication radar based on resource dynamic management and control method | |
| Howells | Explorations in fixed and adaptive resolution at GE and SURC | |
| CN106291477B (en) | Two-dimentional frequency mutually sweeps small target detection system | |
| US9971027B1 (en) | Methods and systems for suppressing clutter in radar systems | |
| CN108875280B (en) | A Dynamic Scheduling Method for Dwell Time of Shipborne Phased Array Guidance Radar | |
| US10908256B2 (en) | Electronic warfare asset management system | |
| CN104678368A (en) | Self-adapting space interference suppression method of one-dimensional phase scanning three-coordinate radar | |
| US9964637B1 (en) | System and method for operating passive radar | |
| CN113985376B (en) | Radar comprehensive display and control excitation system | |
| US7952513B2 (en) | Counter target acquisition radar and acoustic adjunct for classification | |
| CN116026189B (en) | Guidance method, system, medium and equipment for air defense of cluster target tail end | |
| CN109613492B (en) | Method for restraining ground flicker interference by radar seeker | |
| US20200256982A1 (en) | Synthetic aperture direction finding and geolocation | |
| RU128727U1 (en) | MULTIPOSITION SYSTEM OF MOBILE RADAR STATIONS | |
| US11747438B1 (en) | Cognitive electronic warfare scheduler | |
| EP0351934A1 (en) | Radar system using electronically steerable active transmit-receive modules | |
| RU63941U1 (en) | PASSIVE RADAR STATION | |
| US11808869B1 (en) | High speed correlation direction finding | |
| RU2304789C1 (en) | Method of radar tracking of object's trajectory | |
| Leonov | History of monopulse radar in the USSR | |
| Romanuke | Accurate detection of multiple targets by uniform rectangular array radar with threshold soft update and area rescanning | |
| CN108983214B (en) | Radar seeker target selection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No. 1333-1 Zhongchun Road, Minhang District, Shanghai, 201109 Applicant after: SHANGHAI INSTITUTE OF ELECTROMECHANICAL ENGINEERING Address before: No. 3888, Yuanjiang Road, Minhang District, Shanghai, 201100 Applicant before: SHANGHAI INSTITUTE OF ELECTROMECHANICAL ENGINEERING Country or region before: China |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |