CN112528508A - Electromagnetic visualization method and device - Google Patents
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Abstract
本发明提供一种电磁可视化方法和装置，包括：获取各星座系统中每个电磁辐射源的电磁态势，其中，所述电磁态势根据对应的所述电磁辐射源的电磁信号确定；根据空间聚类模型算法，将所述各星座系统中每个电磁辐射源的电磁态势进行聚类分析；基于地理信息系统，通过多图层显示所述聚类分析的结果。本发明实现了电磁态势2D/3D的可视化展示，以及精细化态势分析。
The present invention provides an electromagnetic visualization method and device, including: acquiring the electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to the electromagnetic signal of the corresponding electromagnetic radiation source; according to spatial clustering The model algorithm performs cluster analysis on the electromagnetic situation of each electromagnetic radiation source in the constellation systems; based on the geographic information system, the results of the cluster analysis are displayed through multiple layers. The invention realizes 2D/3D visual display of electromagnetic situation and refined situation analysis.
Description
Technical Field
The invention relates to the technical field of low-orbit giant constellation electromagnetic visualization, in particular to an electromagnetic visualization method and device.
Background
From domestic and foreign documents, electromagnetic visualization research is mainly focused on aspects of optimal calculation, optimal display, environmental adaptation and the like, and although topographical environmental factors are not considered, Zhang missing and the like realize two-dimensional and three-dimensional display of the power range of a search radar under the interference condition. Rancic et al considers the effect of atmospheric refraction on radar signals and achieves a "pseudo-3D" visualization effect by superimposing 2D views of the power range of the radar (or radar mesh) at different altitudes. On the basis of a mature propagation model, Chenpeng provides a radar power range calculation method based on an isosurface, researches a volume rendering technology based on GPU acceleration, realizes three-dimensional display of a radar power range under the influence of terrain in a virtual battlefield environment, and lacks of the research on radar network electromagnetic environment visualization. In the field of wireless communication, there are also studies related to visualization, such as a CSPT tool developed by the american academy of telecommunications science, which integrates multiple propagation models, three-dimensional terrain, and station models, and is suitable for propagation prediction of various bands of wireless communication, and can also perform 2.5-dimensional or 3-dimensional graphical representation on predicted data, where the 2.5-dimensional representation is a 2-dimensional image collectively represented by using the idea of layer overlay (similar to the "pseudo 3-dimensional" visualization mentioned earlier), and where the 3-dimensional representation result is more accurate, but the amount of computation is increased, and is only suitable for small-range representation.
Although considerable research results are obtained at present, from the requirement of spectrum management and control, the following defects exist in the current electromagnetic situation visualization research: 1) visualization aiming at showing the power range of a radiation source cannot meet the requirement of frequency spectrum management on frequency information; 2) when the number of the radiation sources is increased to a certain degree, the conditions of information crowding, shielding, disorder and the like are displayed by a traditional method, and the visualization effect is greatly influenced; 3) in a traditional three-dimensional space frame, the characteristics of multiple dimensions such as time, space, frequency, energy, waveform and the like of an electromagnetic situation are difficult to comprehensively and quantitatively show; 4) the correlation between multiple dimensions, such as the correlation between field intensity and frequency, the correlation between time and frequency, etc., cannot be effectively revealed. These can be used as future development directions or points of entry.
Disclosure of Invention
Based on the above reasons, the embodiments of the present invention provide an electromagnetic visualization method and apparatus.
In a first aspect of the embodiments of the present invention, there is provided an electromagnetic visualization method, including:
acquiring the electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to the corresponding electromagnetic signal of the electromagnetic radiation source;
according to a spatial clustering model algorithm, performing clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system;
and displaying the result of the cluster analysis through a plurality of layers based on a geographic information system.
Optionally, the displaying the result of the cluster analysis through a multi-layer based on the geographic information system includes:
based on a geographic information system, establishing a topographic map of a constellation area and a distribution map of each electromagnetic radiation source according to the clustering analysis result, and establishing a geographic information database of the electromagnetic radiation sources by adopting a database technology;
and connecting the topographic map and the distribution map with the geographic information database to display the electromagnetic distribution of each electromagnetic radiation source in each constellation system.
Optionally, the electromagnetic visualization method further includes:
acquiring position information and electromagnetic signals of each electromagnetic radiation source in each constellation system;
calculating the detection change range of each electromagnetic radiation source and the defect electromagnetic detection surface according to the position information and the electromagnetic signals of each electromagnetic radiation source based on the space geographic environment, the meteorological environment, the hydrological environment and the physical field environment;
and displaying the calculation result based on the geographic information system.
Optionally, the displaying the result of the cluster analysis through a multi-layer based on the geographic information system includes:
displaying at least one of spatial distribution, electromagnetic radiation range, electromagnetic signal propagation, tactical technical parameters, and electromagnetic frequency panorama of each electromagnetic radiation source through a multi-layer based on the geographic information system.
Optionally, the geographic information system includes: the system comprises a data input module, a retrieval query module, a spatial analysis module, a statistical analysis module and a data output module;
the data entry module is used for updating the spatial information and the attribute data;
the retrieval query module is used for providing attribute-space logic query and space-attribute space query;
the space analysis module is used for performing terrain analysis, buffer area analysis, space superposition analysis and analysis of the space clustering result on the graph, summarizing the analysis result and outputting the analysis result in the form of a thematic map and a statistical chart of the electromagnetic environment;
the statistical analysis module is used for performing statistical analysis on a query result, performing statistical analysis on a spatial analysis result and performing statistical analysis on the electromagnetic situation;
and the data output module is used for outputting the results of statistics, analysis and decision in the form of texts, reports or graphs.
Optionally, the performing, according to a spatial clustering model algorithm, a clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system includes:
and performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system based on a triangulation algorithm and a minimum spanning tree algorithm.
Optionally, the minimum spanning tree algorithm includes: by passing
W(T)＝∑(u,v)∈TEw(u,v)
Determining a minimum spanning tree weight; where TE denotes an edge set of the spanning tree T, w (u, v) denotes a weight of (u, v), and (u, v) denotes an edge connecting the vertex u and the vertex v.
In a second aspect of the embodiments of the present invention, there is provided an electromagnetic visualization apparatus, including:
the information acquisition module is used for acquiring the electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to the corresponding electromagnetic signal of the electromagnetic radiation source;
the spatial clustering module is used for carrying out clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial clustering model algorithm;
and the display module is used for displaying the clustering analysis result through a plurality of layers based on a geographic information system.
In a third aspect of the embodiments of the present invention, there is provided an electromagnetic visualization apparatus, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor, when executing the computer program, implements the steps of the electromagnetic visualization method according to any one of the embodiments of the first aspect.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, performs the steps of the electromagnetic visualization method according to any one of the embodiments provided in the first aspect.
Compared with the prior art, the electromagnetic visualization method and the electromagnetic visualization device have the beneficial effects that:
according to the method, the electromagnetic situation of each electromagnetic radiation source in each constellation system is obtained, then the electromagnetic situation of each electromagnetic radiation source in each constellation system is subjected to clustering analysis according to a spatial clustering model algorithm, and finally the clustering analysis result is displayed based on a geographic information system, so that 2D/3D visualization display and fine situation analysis of the electromagnetic situation are realized.
Drawings
Fig. 1 is a schematic flow chart of an implementation of an electromagnetic visualization method provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an electromagnetic emission visualization system provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of electromagnetic environment visualization functionality provided by embodiments of the present invention;
FIG. 4 is a schematic illustration of electromagnetic information management provided by an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a spatial clustering algorithm provided in an embodiment of the present invention;
FIG. 6 is a flowchart of loading provided by an embodiment of the invention;
FIG. 7 is a schematic diagram of an organization of an electromagnetic spatial database provided by an embodiment of the invention;
FIG. 8 is a block diagram of an electromagnetic environment visualization information management system provided by an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electromagnetic visualization apparatus provided in an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another electromagnetic visualization apparatus provided in the embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Referring to fig. 1, an implementation flow diagram of an embodiment of the electromagnetic visualization method provided in this embodiment is detailed as follows:
step S101, obtaining an electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to the corresponding electromagnetic signal of the electromagnetic radiation source.
The electromagnetic environment is an intangible environment that is invisible, blindable and exhibits characteristics of dynamic diversity. In the process of information interaction between a person and an external environment, 75% of information comes from vision, so that the low-orbit constellation electromagnetic visualization is an important method when the low-orbit constellation electromagnetic environment is constructed. With the development of visualization technology and spatial modeling technology, the radiation sources are placed in a two-dimensional or three-dimensional simulation map, and the power range of the radiation sources is more vivid and visual in display, so that each electromagnetic radiation source and the electromagnetic distribution thereof in each constellation system are visualized in the embodiment, and the electromagnetic environment is more vivid and visual.
The number of satellites of a single constellation system is from dozens to hundreds of thousands, each satellite is composed of a plurality of spot beams, each spot beam is independently considered as a single radiation source in the modeling process, so that the number of radiation sources of the constellation system is huge, the number of satellite constellations is huge, the satellite coverage beams of different constellation systems are mutually overlapped, the spectrum situation is complicated, and the low-orbit constellation electromagnetic situation visualization system has great challenges: the method comprises the steps of large-scale radiation source dynamic target display, large-scale radiation source data real-time calculation, ultrahigh response speed and refresh speed (various forms such as contour lines and thermodynamic diagrams) of electromagnetic situation of a large-scale radiation source, and the problem that how to display electromagnetic situation information and natural environment elements related to the electromagnetic situation information in a layered, fine, visual, clear and vivid manner is to be researched and solved by an electromagnetic situation visualization technology due to numerous constellation systems. The existing electromagnetic visualization system has the conditions of information crowding, shielding, disorder and the like which must occur in the visualization display when the number of radiation sources is increased to a certain degree; the characteristics of multiple dimensions such as time, space, frequency, energy, waveform and the like of the electromagnetic situation are difficult to be comprehensively and quantitatively shown; and the relevance display of multiple dimensions cannot effectively show multiple problems.
In order to accurately and quantitatively evaluate the electromagnetic interference of the low-earth satellite System, the embodiment performs visual System design and display by researching a visual model of the low-earth constellation satellite System based on a Geographic Information System (GIS) + KML file architecture, packages an electromagnetic radiation source model into a called or configured KML functional component, and realizes the visible display of the electromagnetic situation based on the GIS through System configuration, i.e., writes a radiation source into a 2D/3D KML file, superimposes the influence of the radiation source and the radiation source (considering propagation path and environmental influence loss) on a digital map containing topographic representation, calculates and refreshes in real time, thereby realizing the visible display of the electromagnetic situation 2D/3D, supporting the evaluation, prediction and visual display of the electromagnetic situation of single constellation, combined constellation or multi-constellation fusion, and realizing the evaluation, prediction and visual display of the electromagnetic situation based on topographic data and hydrology, The simulation virtual reality of the meteorological environment simulation loading visual scene is applicable to the field of low-orbit giant star constellation electromagnetic visualization, and is particularly applicable to electromagnetic visualization in a large-scale satellite complex environment.
The electromagnetic visualization method further comprises:
acquiring position information and electromagnetic signals of each electromagnetic radiation source in each constellation system;
calculating the detection change range of each electromagnetic radiation source and the defect electromagnetic detection surface according to the position information and the electromagnetic signals of each electromagnetic radiation source based on the space geographic environment, the meteorological environment, the hydrological environment and the physical field environment;
and displaying the calculation result based on the geographic information system.
And S102, performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial cluster model algorithm.
One of the differences between the spatial clustering model algorithm of the present embodiment and the conventional clustering method is that spatial clustering is performed on spatial entities. As an important branch of spatial data mining, spatial clustering is a process of automatically grouping spatial entity sets according to a certain similarity criterion to achieve minimum intra-group difference and maximum inter-group difference. For the low orbit constellation electromagnetic environment visualization research, the characteristics, attributes and spatial positions of spatial entities such as low orbit constellation electromagnetic radiation sources to be researched must be clear. For this purpose, a spatial clustering analysis model may be used to analyze and process one or more structural features in spatial distribution, such as distance relationship, topological relationship, orientation relationship, density relationship, and the like between patterns.
Meanwhile, the traditional data mining process is often a 'black box' operation, users can only passively accept mining results no matter the users are interested or not, and the results are often abstract and not easy to understand. In the field of non-spatial data mining, in recent years, initial progress is made in the research aspect of integrating data mining and data visualization technology with OLAP (online analytical analysis) technology, and a new hotspot of data mining and knowledge discovery, namely Visual Data Mining (VDM), is formed at present. The basic idea of VDM is to break through the "closed" of the conventional data mining algorithm, fully utilize various data visualization technologies, support a user to participate in the whole data mining process in combination with his own professional background in a completely open and interactive manner, and finally achieve the goal of improving the effectiveness and reliability of data mining, so this embodiment can also perform visual analysis and analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system based on VDM.
Optionally, the performing, according to a spatial clustering model algorithm, a clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system includes:
and performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system based on a triangulation algorithm and a minimum spanning tree algorithm.
Optionally, the embodiment is implemented by
W(T)＝∑(u,v)∈TEw(u,v)
Determining a minimum spanning tree weight; where TE denotes an edge set of the spanning tree T, w (u, v) denotes a weight of (u, v), and (u, v) denotes an edge connecting the vertex u and the vertex v.
For the connected weighted graph G, its spanning tree is also weighted. The sum of the weights of each side of the spanning tree T is called the weight of the tree, and is written as:
W(T)＝∑(u,v)∈TEw(u,v)
among them, the Spanning Tree with the smallest weight is called the Minimum Spanning Tree (G). The minimum spanning tree may be abbreviated MST. The minimum spanning tree is applied to spatial clustering, which is a feature that MST itself has: a minimum span feature. The minimum span property of the MST, namely any edge of the MST is the minimum span from a certain point to other nodes, is consistent with the clustering thinking of people, so that the spatial distribution mode of the clustering result based on the MST is different from other clustering methods based on the minimum mean square error standard.
The most distinctive feature of the MST-based visual spatial clustering analysis model algorithm is that the adjacency degree (spatial adjacency relation) of the geographic entity and other attributes are taken as spatial clustering processing objects together by using a Delaunay triangulation tool and MST (minimum spanning tree), as shown in fig. 5.
And step S103, displaying the result of the cluster analysis through a plurality of layers based on a geographic information system.
The geographic information system has efficient spatial data management and flexible spatial data comprehensive analysis capability, and is widely applied to the field of military research. With the development of computer technology, especially the gradual maturity of the GIS technology, it becomes possible to develop a GIS-based electromagnetic environment visualization information system. As a basic geographic information platform, the GIS performs unified management on spatial data such as a digital map and electromagnetic information attribute data, as shown in fig. 7, the GIS organizes a process of an electromagnetic spatial database, and meanwhile, the strong graphic processing and output capability of the GIS provides visual data support for a system. From the application condition, the GIS technology plays an irreplaceable role in the aspects of acquisition, management, analysis, simulation, display and the like of the relevant spatial data of the electromagnetic radiation source, and also plays an important supporting role in the aspects of electromagnetic situation and how to evaluate the electromagnetic environment.
The GIS is a computer system which is based on a geographic space database and used for collecting, managing, operating, analyzing and displaying space related data under the support of software and hardware of a computer. From the point of view of graphics, a GIS is essentially a digital map or drawing that is convenient for computer processing and network transmission, can conveniently input, edit, display, query, spatial analysis and output printing of spatial data, and can also utilize a three-dimensional dynamic simulation technology to perform simulation on various elements to construct a simulation space that conforms to reality and shows complex space-time relationships among various ground features. The method adopts a geographic model analysis method, provides various spatial geographic information in time, and assists related geographic research and geographic decision. Since GIS models and stores geospatial data in a computer, it also has the capability of the study object to describe, simulate, and predict. Compared with an information system in the conventional sense, the GIS has the characteristics of strong space analysis capability, wide data sources, visual and visual working modes and the like, and simultaneously supports reasonable superposition of terrain, weather and the like. The method is widely applied to the field with higher requirements on the query and analysis functions of the spatial data. The GIS system has the unique advantages in the application to the visualization of the electromagnetic situation due to the characteristics, and provides a good solution and idea for the electromagnetic visualization of the low-orbit constellation system.
Specifically, the GIS may establish a topographic map of the low-earth constellation region and a distribution map of the electromagnetic radiation source to be acquired through pattern acquisition and vectorization processing, establish an electromagnetic radiation source basic geographic information database by using a database technology, and establish and query information such as characteristics, attributes, spatial positions, detection capabilities, communication capabilities and the like of the low-earth satellite electromagnetic radiation source through connection of an electronic map and the database.
The visualization of the electromagnetic situation of the low-orbit constellation needs to be shown, the situation to be shown is not only the distribution of the electromagnetic field itself, but also the distribution of the electromagnetic field relative to the terrain, the ground features and the atmosphere, and the situation information of tens of thousands of dynamic satellite radiation sources reaching the ground surface after the electromagnetic emission information is subjected to the satellite-ground propagation path loss is dynamically, intuitively, vividly, clearly and smoothly shown. The content or scheme of the low-orbit constellation visualization needs to be combed. The electromagnetic visualization design structure is shown in figure 2,
the visual expression form of the electromagnetic situation can be various, and the method can be used as a basic method such as a graph, a table, data, characters, voice and the like. Electromagnetic signals are extremely complex and cannot be clearly expressed only by one mode, so that not only are various methods and means comprehensively adopted, but also various modes are organically combined into a whole which is complete in function and mutually complementary as much as possible so as to fully reflect the reality of electromagnetic situations.
In the visual display process, the embodiment can design and display a visual system based on the framework of GIS software and KML files, packages an electromagnetic radiation source model into a KML functional component which can be called or configured, realizes the visual display of the electromagnetic situation based on the GIS system through system configuration, namely writes a radiation source into a 2D/3D KML file, superposes the radiation source and the influence (considering propagation path and environmental influence loss) of the radiation source on a digital map containing terrain representation, calculates and refreshes in real time, and accordingly realizes the visual display of the electromagnetic situation 2D/3D. In the process, the electromagnetic situation visualization display under a single constellation can be supported, the electromagnetic situation visualization of superposition of multiple constellations can be realized, and the refined situation analysis and the visualization display are convenient to realize by adopting a multiple-layer display mode.
Optionally, the geographic information system of this embodiment may include: the system comprises a data entry module, a retrieval query module, a spatial analysis module, a statistical analysis module and a data output module, and is shown in figure 8.
The data entry module is used for updating the spatial information and the attribute data.
It is well known that geographic information entities have spatial and non-spatial attributes, respectively spatial data and non-spatial data. The present embodiment mainly discusses the data structure organization problem of spatial data, and in fact, the input and organization of spatial data has become the bottleneck of the development of the present GIS, and the grid structure and the vector structure of spatial data are two different methods for simulating geographic information. When analyzing the properties, characteristics, correlations, topology, etc. of the electromagnetic radiation source, it is often not necessary to analyze all terrain, topographical elements, in other words most topographical elements, but only as a reference background for professional entities. Therefore, a technical route of visual vector grid combination based on MST is provided with private support of the spatial clustering analysis model:
all maps and data of various scales are scanned, and structured integration is carried out to form an electronic map after geometric transformation and graphic finishing, namely the electromagnetic situation of each electromagnetic radiation source in each constellation system is obtained. Marking an electromagnetic target thematic information entity by a symbol marking function of the system on the basis of the electronic map: and corresponding attribute data information such as diagrams, characters, photos, multimedia, images and the like is connected to the electromagnetic target thematic information entity. Electromagnetic targets are clustered through a spatial clustering analysis model of the MST, and topological relations, distance relations and the like among the electromagnetic targets and among the electromagnetic targets in the electromagnetic target group are solved.
In this embodiment, a pyramid-type data structure hierarchy is adopted to integrate a large number of maps with multiple scales of the low-orbit constellation electromagnetic space, that is, the top layer in the layer structure is a data layer with a small scale, and the bottom layer is a data layer with a gradually larger scale, so that the data layers are all registered with corresponding regions on the ground, and the loading process is as shown in fig. 6.
Furthermore, the retrieval query module is used for providing attribute-space logic query and space-attribute space query, and the actual results of the two operations are consistent as data in the GIS correspond to points, lines and surfaces in a map; the space analysis module is used for performing terrain analysis, buffer area analysis, space superposition analysis and analysis of the space clustering result on the graph, summarizing the analysis result and outputting the analysis result in the form of a thematic map and a statistical chart of the electromagnetic environment; the statistical analysis module is used for performing statistical analysis on the query result, the spatial analysis result and the electromagnetic situation, summarizing the analysis results and outputting the analysis results in the form of an electromagnetic environment thematic map and a statistical chart; and the data output module is used for outputting the results of statistics, analysis and decision in the form of texts, reports or graphs.
Specifically, under the guidance of the design idea, the map sheet is determined to be used as a unit to establish a map sheet space index; dividing the space entity into point, line and surface data according to geometric characteristics, adopting a multi-source space data fusion technology, and regarding integration of different types of data, performing basic operations such as space data query and management, and the basis of space analysis model and auxiliary decision model program operation, as shown in fig. 7 and 8: the information management system of the low-orbit constellation electromagnetic environment takes the input, query and analysis of spatial information as a central task, and the whole system mainly integrates the following modules: the system comprises a data entry module, a retrieval and query module, a statistical analysis module, a spatial analysis module, a simulation module, an auxiliary decision module and a data output module.
The spatial data and the attribute data of the data entry module can be entered into a computer through input equipment such as a keyboard, a scanner and a digitizer, and can also be directly transferred into the GIS from other systems, and meanwhile, the module also provides the functions of timely changing and supplementing the data. The operation of the database can be reflected on the map in time, and the operation on the map can be expressed in the database. The statistical range can be set by the user, such as by a rectangular, circular, or polygonal tool to determine the range size.
Optionally, the displaying the result of the cluster analysis through a multi-layer based on the geographic information system includes:
based on a geographic information system, establishing a topographic map of a constellation area and a distribution map of each electromagnetic radiation source according to the clustering analysis result, and establishing a geographic information database of the electromagnetic radiation sources by adopting a database technology;
and connecting the topographic map and the distribution map with the geographic information database to display the electromagnetic distribution of each electromagnetic radiation source in each constellation system.
The electromagnetic situation visualization of the embodiment not only analyzes the types, attributes and distribution conditions of various electromagnetic signals, but also shows the electromagnetic situation, also considers and considers the distribution of the electromagnetic field relative to the terrain, the terrain and the weather change, and adopts a reasonable mode to show the distribution of the electromagnetic field and the natural environment elements related to the electromagnetic field, thereby greatly enhancing the vivid and intuitive control of the global information in the real world.
Further, the present embodiment may establish a low-earth constellation electromagnetic environment information management system based on the GIS, as shown in fig. 4, and perform quantitative analysis and comprehensive integration on the aspects of utilization and management of electromagnetic radiation sources, electromagnetic signals, electromagnetic radiation propagation factors, electromagnetic detection systems, and the like in the low-earth constellation on a system level. The method is characterized in that data collection and data analysis are carried out on an electromagnetic radiation source and an electromagnetic signal in a low-orbit constellation, and the influence effect on the electromagnetic radiation, the detection change range of the electromagnetic radiation source, the defect electromagnetic detection surface and the like related to the space geographic environment, the meteorological environment, the hydrological environment, the physical field environment and the like are calculated.
Optionally, the displaying the result of the cluster analysis through a multi-layer based on the geographic information system includes:
displaying at least one of spatial distribution, electromagnetic radiation range, electromagnetic signal propagation, tactical technical parameters, and electromagnetic frequency panorama of each electromagnetic radiation source through a multi-layer based on the geographic information system.
The electromagnetic radiation source spatial distribution display function based on the geographic information system is shown in fig. 3, and mainly displays the distribution conditions of the electromagnetic radiation sources in a low-orbit constellation on a digital map, including communication stations, communication networks, radar stations, electronic countermeasure equipment, weapon systems with a command control system, the distribution conditions of civil electronic radiation sources, and the like. The realization of the function can adopt a method combining hierarchy and comprehensive situation, wherein the hierarchy method is specially set for better embodying the electromagnetic environment of a certain field, and the comprehensive situation is set for embodying the overall situation display of the electromagnetic environment.
Wherein, the electromagnetic radiation range is displayed, and mainly displays the effective acting distance of important electromagnetic radiation sources, such as the detection range of a radar network, an interfered area and an effective communication area of a communication radio station; electromagnetic signal transmission display, which mainly displays the working states of various electromagnetic radiation sources of the low-orbit constellation, the information circulation condition of a command control communication network, the busy-free state and the interfered state of a communication line, the smooth communication condition and the like; the electromagnetic radiation source tactical technical parameter display is mainly used for displaying main technical tactical parameters of the electromagnetic radiation source, can be used as auxiliary display of an electromagnetic layer, and can be realized by inquiring the displayed electromagnetic radiation source; the electromagnetic frequency panoramic display mainly displays the frequency distribution condition of electromagnetic signals on a low-orbit constellation in real time. In addition, in the low orbit constellation electromagnetic environment visualization design, auxiliary display functions such as radiation source number statistics, radiation source organization sequences, main tactical application and the like can be designed.
Optionally, in the low-orbit constellation electromagnetic emission evaluation process, the electromagnetic radiation characteristics or situation under a single constellation can be independently extracted, and the complex electromagnetic situation after superposition and fusion of a multi-constellation system can be calculated and forecasted.
For example, the two-dimensional map interface is simulated, and visualization operation can be performed after simulation, for example, a constellation selection panel is displayed first, all constellations are arranged, a constellation can be selected by clicking, the name of the constellation is changed into red after selection, satellites in the constellation can be viewed by a right key, all the satellites are selected by default, the satellites can be selected/unselected by clicking, after the constellation and the satellites are selected, the terrain, the weather and the ground objects are selected according to needs, the effect of electromagnetic emission on the two-dimensional map is displayed, and the deeper the color represents that the electromagnetic intensity is higher.
For example, the present embodiment simulates a three-dimensional map interface, and visualization operation may be performed after the simulation. The three-dimensional map interface can comprise a common view and a parabolic view, for the common view, a constellation selection panel is displayed firstly, all constellations are arranged, the constellation can be selected by clicking, the name of the constellation is changed into red after the selection, the satellites in the constellation can be checked by a right key, all the satellites can be selected by default, the satellites can be selected/unselected by clicking, after the constellations and the satellites are selected, a 3D map is clicked, the common view is selected, and the effect of electromagnetic emission on the three-dimensional map is displayed; for the parabolic view, firstly, displaying a constellation selection panel, arranging all constellations, clicking the constellations to be selectable, changing the names of the selected constellations into red, checking the satellites in the constellations by a right key, defaulting all the satellites to be selected, clicking the satellites to select/not to select, clicking a 3D map after the constellations and the satellites are selected, selecting the parabolic view, displaying the effect of electromagnetic emission on the three-dimensional map, and having four dimensions of a slicing direction, a tangent plane, a tangent angle and a slicing block.
The electromagnetic visualization method adopts a framework based on GIS software and KML files to design and display a visualization system, packages an electromagnetic radiation source model into a KML functional component which can be called or configured, realizes the visualization display of the electromagnetic situation based on the GIS system through system configuration, namely, writing the radiation source into a 2D/3D KML file, superposing the radiation source and the influence of the radiation source on a digital map containing topographic representation, calculating and refreshing in real time, thereby realizing the 2D/3D visual display of the electromagnetic situation, supporting the evaluation, forecast and visual display of the electromagnetic situation of single constellation, combined constellation or multi-constellation fusion, in the low-orbit constellation electromagnetic emission evaluation process, the electromagnetic radiation characteristics or situation under a single constellation can be independently extracted, and the complex electromagnetic situation after superposition and fusion of a multi-constellation system can be calculated and forecasted.
It should be understood by those skilled in the art that the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the electromagnetic visualization method described in the above embodiments, the present embodiment provides an electromagnetic visualization apparatus. Specifically, referring to fig. 9, a schematic structural diagram of the electromagnetic visualization apparatus in this embodiment is shown. For convenience of explanation, only the portions related to the present embodiment are shown.
The electromagnetic visualization device mainly comprises: an information acquisition module 110, a spatial clustering module 120, and a display module 130.
The information obtaining module 110 is configured to obtain an electromagnetic situation of each electromagnetic radiation source in each constellation system, where the electromagnetic situation is determined according to an electromagnetic signal of the corresponding electromagnetic radiation source.
The spatial clustering module 120 is configured to perform cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial clustering model algorithm.
The display module 130 is configured to display the result of the cluster analysis through multiple layers based on a geographic information system.
The electromagnetic visualization device realizes the visualization display of 2D/3D electromagnetic situation and the refined situation analysis.
The present embodiment also provides a schematic illustration of an electromagnetic visualization apparatus 100. As shown in fig. 10, the electromagnetic visualization device 100 of this embodiment includes: a processor 140, a memory 150 and a computer program 151, for example a program of an electromagnetic visualisation method, stored in said memory 150 and executable on said processor 140.
Wherein the processor 140, when executing the computer program 151 described on the memory 150, implements the steps in the above described embodiment of the electromagnetic visualization method, such as the steps 101 to 103 shown in fig. 1. Alternatively, the processor 140, when executing the computer program 151, implements the functions of each module/unit in the above-described device embodiments, for example, the functions of the modules 110 to 130 shown in fig. 9.
Illustratively, the computer program 151 may be partitioned into one or more modules/units that are stored in the memory 150 and executed by the processor 140 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program 151 in the electromagnetic visualization apparatus 100. For example, the computer program 151 may be divided into the information acquisition module 110, the spatial clustering module 120, and the display module 130, and the specific functions of each module are as follows:
the information obtaining module 110 is configured to obtain an electromagnetic situation of each electromagnetic radiation source in each constellation system, where the electromagnetic situation is determined according to an electromagnetic signal of the corresponding electromagnetic radiation source.
The spatial clustering module 120 is configured to perform cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial clustering model algorithm.
The display module 130 is configured to display the result of the cluster analysis through multiple layers based on a geographic information system.
The electromagnetic visualization device 100 may include, but is not limited to, a processor 140 and a memory 150. Those skilled in the art will appreciate that fig. 10 is merely an example of electromagnetic visualization apparatus 100, and does not constitute a limitation of electromagnetic visualization apparatus 100, and may include more or less components than those shown, or combine some components, or different components, for example, electromagnetic visualization apparatus 100 may further include input and output devices, network access devices, buses, and the like.
The Processor 140 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 150 may be an internal storage unit of the electromagnetic visualization apparatus 100, such as a hard disk or a memory of the electromagnetic visualization apparatus 100. The memory 150 may also be an external storage device of the electromagnetic visualization apparatus 100, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the electromagnetic visualization apparatus 100. Further, the memory 150 may also include both an internal storage unit and an external storage device of the electromagnetic visualization apparatus 100. The memory 150 is used for storing said computer programs and other programs and data required by the electromagnetic visualization device 100. The memory 150 may also be used to temporarily store data that has been output or is to be output.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and models are merely illustrated as being divided, and in practical applications, the foregoing functional allocations may be performed by different functional units and modules as needed, that is, the internal structure of the device may be divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
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