RU2701506C1 - Method for cognitive processing of radar information - Google Patents

Abstract

FIELD: radar ranging and radio navigation.SUBSTANCE: invention relates to radar ranging and can be used in automated systems for controlling, transmitting and exchanging information in automated radar systems. To achieve the technical result, the method of cognitive processing of radar information comprises the following actions. After obtaining radar information from various sources of a priori information, the operator decides on the presence in a certain area of space of the object of interest and takes this area of space for accompaniment, automatic radar plotting system is switched on, after its switching on selected area is assigned number and status, then the cognitive analyzer generates a radar scene on which all areas of the space in which the escorted and new objects are expected to be found, each new object is assigned a new signal on each subsequent view until all library signals are used, after using all signals, a statistical form of region or object is generated, in which data on characteristics of reflection of a specific object are indicated when probing with a specific signal, after the search of all signals from the library is completed, the optimum signal is selected based on the criterion of the maximum response amplitude and its tracking is performed with successive formation of the radar scene for the next survey or for transmitting the command to the antenna station.EFFECT: broader functional capabilities of radar systems owing to provision for adaptation to the environment in order to maximize informativity of the radar scene.1 cl, 4 dwg

Description

The invention relates to radar and can be used in automated control systems, transmission and exchange of radar information (radar), in automated radar systems (radar).

A device is known ["Guide to radar", M. Skolnik, M., "Soviet Radio", 1976, volume 1, p. 191], containing a series-connected high-frequency part of the radar receiver, detector, analog-to-digital converter (ADC) , an input storage device (memory) with counters for write and read addresses, an output unit and a device output with an output indicator, and an azimuth generating unit whose input is connected to an antenna selsyn and whose output is connected to the second input of the output unit and, in addition , operator panel and threshold register, input to torogo connected to the first output of the operator console, and the output of which is connected to the first input of the comparator, the output exceeding the threshold of which is connected to the input of the permitting unit. The disadvantage of this device is the low screening efficiency of the false primary radar.

Closest to the claimed invention is the "Method of tertiary processing of radar information in the computer system of the control center" [RU No. 2561950 C1, G01S 13/91, 09/10/2015], including the reception of messages on airborne objects (AT) from radar sources, bringing these messages to a single point in time and into a single coordinate system, the identification of messages received from message sources with the aim of forming a generalized picture of the air situation and transmitting it to consumers, characterized in that the decision to identify messages is made t when the values of the standard deviations of the coordinate deviations of the coordinate components of the message along the VO from the source and the combined path for several exchange cycles get into the identification gates, the messages are unidentified if the standard deviation of at least one of the coordinates exceeds a value equal to the total value of the identification gate and the ambiguity zone, the value of which is determined by the dynamic errors of the stabilization and navigation systems of the radar source, with the possibility of false recognition information when the radar data are received from two or more sources with the same technical characteristics by analyzing when a message arrives on a new HE from one of the sources of the possibility of a new HE entering the visibility areas of other sources and setting a waiting time for information on this HE to come from other sources, if during the waiting time, information from other sources was not received, and information on this VO from the first source ceased to come, conclude that the information on this VO is false messages from the first source. The disadvantage of this method is the inability to adapt the radar to the environment in order to maximize the information content of the radar scene (PC), depending on the task being solved by the radar operator.

The technical result of the invention is to expand the functionality of the radar by ensuring its adaptation to the environment in order to maximize the information content of the radar scene, depending on the task being solved by the radar operator.

The technical result is achieved by the fact that the method of cognitive processing of radar information, including receiving messages and forming a generalized picture of the air situation, differs in that after receiving the information, the radar operator decides whether there is a VO of interest in a certain area of space and takes this area of space for tracking, after which the automatic radar plotting system (CARPT) system is turned on, after it is turned on, the selected area is assigned a number and a stat mustache ("capture"), then the cognitive analyzer (KA) forms a PC, which indicates all areas of space in which it will presumably be accompanied and new VOs, each new object at each subsequent review is assigned a new signal until all signals libraries will not be used, after using all the signals, a statistical form of the region or object is formed, in which data about the reflection characteristics of a particular object when probing with a specific signal are indicated, after tions through all the signals from the library selects the optimal signal according to the criterion of maximum amplitude of the response and progress of support consistent with the formation of PC for further review, or for the command transmission antenna post.

A method for cognitive processing of radar information contains the following actions.

After receiving radar data from various sources of a priori information, the radar operator makes a decision about the presence of a HE in a certain area of space and takes this area of space for maintenance, SARPT is turned on, after its inclusion the selected area is assigned a number and status (“capture”), then the spacecraft generates PC, on which all areas of space are indicated, in which escorted and new VOs are supposed to be located, each new VO at each subsequent review is assigned a new signal until all library signals will not be used, after using all the signals, a statistical form of the region or object is generated, which indicates the reflection characteristics of a particular HE when probing with a specific signal, after the search of all signals from the library is completed, the optimal signal is selected according to the criterion of maximum response amplitude and its accompaniment with the sequential formation of a PC for the next review or for transmitting a command to the antenna post.

In recent years, cognitive research has begun to shift to a deeper account of the characteristics of human activity. In particular, the foundation of the latest research on the nature of human processing of information is based on the idea that cognitive models should take into account nonanalytical methods of processing figurative information. Speaking of cognitive models, one cannot but touch on cognitive computer graphics (CCG) - a new direction in the field of artificial intelligence - and the issues of its application in intelligent radar processing systems.

The essence of the CCG concept is simple: if it is possible to visualize the essential properties and relationships between objects of a certain subject area (even of any degree of abstraction) on the display screen, then such an image of CCG, as a rule, contains information (at the level of graphic details of a computer image) about possible and not always known in advance consequences of these properties and these relationships. In other words, under certain conditions, such CCG images often become an effective source of various hints that help to see new patterns in the studied subject area. All this fully applies to the activities of the radar operator in the cognitive processing of radar.

The essence of the method of cognitive processing of radar information is as follows.

Using a priori information from an automated identification system (AIS), an electronic navigation chart (ENC), or observing marks on the screen of a navigation radar station (NRLS), the operator decides whether there is an object of interest in a certain area of space (ship, buoy, etc. ) Using the controls of the NRLS, the operator takes this area of space for escort and begins to work with ARPT.

Using information from SARPT, the selected area is processed using the SC. The area is assigned a number corresponding to the number of the escort object and status (“capture”). Objects with this status are subject to scanning by all signals that are in the signal library.

The spacecraft forms a PC, on which all areas of space are indicated, in which escorted and new HEs are supposed to be. Accompanied objects have a status (“tracking”); for them, a sounding signal was chosen at previous SC cycles. For new objects, at each subsequent review, a new signal is assigned until all library signals are used.

After each sounding of a new VO with a new signal, a statistical form of the area of the object is formed, in which data on the reflection characteristics of a particular VO when sensing with a specific signal are indicated.

Upon completion of the search of all signals from the library, in the event that the CARPT makes a decision about the presence of an object in this area of space, the signal is selected by comparison with the statistical form of the area, the probing of which provides the best support for the object and the object is assigned a status ("tracking").

In each cycle, the spacecraft forms a PC, where each signal area of interest is assigned a signal number that needs to scan this area. In FIG. 1 shows a diagram of a PC.

Based on the PC, a scanning matrix (MS) is formed. In FIG. 2 presents a diagram of the MS.

In FIG. 3 presents a diagram of the algorithm of the cognitive analyzer.

In FIG. 4 is a diagram of an algorithm for generating a sample of statistical forms.

The work of the radar with elements of cognitive adaptation is as follows.

Marine radar with elements of cognitive adaptation is an automated radar that interacts with the environment through an electromagnetic field, the parameters of which are adapted to the environment depending on the target surveillance function with the participation of the radar operator. The ability of ship radar to cognitive adaptation is provided by new properties of the developed antenna post.

The choice of the optimal sounding signal is carried out by statistical analysis of the training sample of the signal sequence from the output of the radar receiver. A training sample is formed by sensing the environment with test signals, the library of which is stored in the memory of the control panel.

The ability of the operator to observe other vessels, a coastline, buoys, surface objects and obstacles on the indicator device of the radar control panel depends on the reflectivity of these objects, their distance, the level of interference and attenuation of the probe signal in space.

The operator of a conventional shipborne radar (not containing elements of cognitive adaptation) learns the environment through manual adjustments of the radar, achieving maximum informativeness of the radar image on the radar indicator device. Using his experience, skills and knowledge of the environment, the operator periodically changes the radar operating modes and analyzes the information content of the radar indicator device.

The cognitive cycle of environmental awareness is completely closed to the operator, and the radar itself is only his tool for environmental awareness. The radar operator repeats the cognitive cycle until the quality of the observed information on the radar indicator device satisfies its requirements. The spacecraft selects the optimal sounding signal according to the maximum signal-to-noise ratio at the output of the radar receiver, obtained as a result of statistical processing of the training sample in accordance with the task determined by the radar operator for the spacecraft. Radar adaptation to the environment is carried out in order to maximize the information content of the PC, depending on the task being solved by the radar operator. In order to reduce the number of spacecraft cycles, the radar operator can specify the problem that the spacecraft can solve, for example, not only adapt the radar for optimal observation of another vessel (coastline, buoy, navigational fence), but also indicate the probable location of the target received from external sources. In essence, the spacecraft of the radar operator’s console is an assistant to the radar operator in its adaptation to the environment, depending on the target surveillance function.

Thus, the method of cognitive processing of radar information provides an extension of the radar's functionality by ensuring its adaptation to the environment in order to maximize the information content of the PC, depending on the task being solved by the radar operator.

Claims (1)

A method of cognitive processing of radar information, including receiving messages and forming a generalized picture of the situation, characterized in that after receiving the information, the operator decides whether there is an object of interest in a certain area of space and takes this area of space for tracking, the automatic radar trajectory plotting system is turned on, after its inclusion, the selected area is assigned a number and status, then the cognitive analyzer forms a radar scene on which all areas of space in which escorted and new objects are supposed to be located are indicated, each new object at each subsequent review is assigned a new signal until all library signals are used, after using all the signals, a statistical form of the region or object is formed, in which indicates data on the reflection characteristics of a particular object when sensing a specific signal, after the enumeration of all signals from the library is completed, a choice about optimality criterion of maximum signal amplitude of the response and its maintenance is carried out with sequential formation of a radar for the next scene viewing or for command transmission antenna post.

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