CN112528508B - Electromagnetic visualization method and device - Google Patents
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Abstract
The invention provides an electromagnetic visualization method and device, comprising the following steps: acquiring an electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to electromagnetic signals of the corresponding electromagnetic radiation sources; according to a spatial clustering model algorithm, carrying out clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system; and displaying the result of the cluster analysis through multiple layers based on a geographic information system. The invention realizes the visual display of the electromagnetic situation 2D/3D and the refined situation analysis.
Description
Technical Field
The invention relates to the technical field of electromagnetic visualization of low-orbit giant constellation, in particular to an electromagnetic visualization method and device.
Background
From the literature at home and abroad, the electromagnetic visualization research is mainly focused on the aspects of optimization calculation, optimization display, environment adaptation and the like, and Zhang Wei et al realize the two-dimensional and three-dimensional display of the power range of the search radar under the interference condition although the topographic environment factors are not considered. Rancic et al consider the effect of atmospheric refraction on radar signals to achieve a "pseudo 3D" visualization effect by superimposing 2D views of the radar (or radar net) power range at different heights. Chen Peng provides a radar power range calculation method based on an isosurface on the basis of a mature propagation model, researches a volume drawing technology based on GPU acceleration, and realizes three-dimensional display of the radar power range under the influence of terrain in a virtual battlefield environment, but lacks research on radar network electromagnetic environment visualization. There are also studies related to visualization in the field of wireless communication, such as CSPT tools developed by the american telecom science institute, integrate various propagation models, three-dimensional topography, and station models, and are suitable for propagation prediction of wireless communication in various bands, and also can perform 2.5-dimensional or 3-dimensional graphical presentation on predicted data, where 2.5-dimensional presentation is to use the concept of layer superposition to present 2-dimensional images in a concentrated manner (similar to our previously mentioned "pseudo 3-dimensional" visualization), where 3-dimensional presentation results are more accurate, but the calculation amount is increased, and the method is only suitable for small-scale presentation.
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 targeting the radiation source power range presentation cannot meet the frequency information requirements of spectrum management; 2) When the number of the radiation sources is increased to a certain extent, the conditions such as crowding, shielding, messy and the like of information are displayed by the traditional method, so that the visual effect is greatly influenced; 3) In the 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 display; 4) The relevance between multiple dimensions, such as the relevance of field intensity and frequency, the relevance of time and frequency, and the like, cannot be effectively displayed. These can all be future development directions or cut-in points.
Disclosure of Invention
For the above reasons, the embodiment of the invention provides an electromagnetic visualization method and device.
In a first aspect of an embodiment of the present invention, there is provided an electromagnetic visualization method, including:
Acquiring an electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to electromagnetic signals of the corresponding electromagnetic radiation sources;
according to a spatial clustering model algorithm, carrying out clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system;
and displaying the result of the cluster analysis through multiple layers based on a geographic information system.
Optionally, the displaying, based on the geographic information system, the result of the cluster analysis through multiple layers includes:
Establishing a topography map of a constellation area and a distribution map of each electromagnetic radiation source according to the clustering analysis result based on a geographic information system, and establishing a geographic information database of the electromagnetic radiation sources by adopting a database technology;
And connecting the topography 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 the electromagnetic radiation sources according to the position information and the electromagnetic signals of each electromagnetic radiation source and calculating a defective electromagnetic detection surface based on the space geographic environment, the meteorological environment, the hydrologic environment and the physical field environment;
And displaying a calculation result based on the geographic information system.
Optionally, the displaying, based on the geographic information system, the result of the cluster analysis through multiple layers includes:
at least one of spatial distribution, electromagnetic radiation range, electromagnetic signal propagation, tactical technical parameters, and electromagnetic frequency panorama of each of the electromagnetic radiation sources is displayed by multiple layers based on the geographic information system.
Optionally, the geographic information system includes: the system comprises a data input module, a search query module, a space analysis module, a statistical analysis module and a data output module;
The data input module is used for updating the space information and the attribute data;
the search query module is used for providing attribute-space logic query and space-attribute space query;
The space analysis module is used for carrying out 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 an electromagnetic environment thematic map and a statistical chart;
The statistical analysis module is used for carrying out statistical analysis on the query results, the statistical analysis on the space analysis results and the statistical analysis on the electromagnetic situation;
the data output module is used for outputting statistical, analysis and decision results in the form of text, report or graph.
Optionally, the performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial cluster model algorithm includes:
And carrying out 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 through
W(T)＝∑(u,v)∈TEw(u,v)
Determining the weight of the minimum spanning tree; where TE represents the edge set of the spanning tree T, w (u, v) represents the weight of (u, v), and (u, v) represents the edge connecting vertex u and vertex v.
In a second aspect of an embodiment 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 electromagnetic signals of the corresponding electromagnetic radiation sources;
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 result of the cluster analysis through multiple layers based on the geographic information system.
In a third aspect of the embodiments of the present invention, there is provided an electromagnetic visualization apparatus comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the electromagnetic visualization method as provided in any one of the first aspects of the embodiments described above when the computer program is executed.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of an electromagnetic visualization method as provided in any one of the first aspects of the embodiments.
Compared with the prior art, the electromagnetic visualization method and device provided by the embodiment of the invention have the beneficial effects that:
according to the method, the electromagnetic situation of each electromagnetic radiation source in each constellation system is firstly obtained, then the electromagnetic situation of each electromagnetic radiation source in each constellation system is subjected to cluster analysis according to a spatial cluster model algorithm, and finally the cluster analysis result is displayed based on a geographic information system, so that the visual display of the electromagnetic situation 2D/3D and the refined situation analysis are realized.
Drawings
Fig. 1 is a schematic implementation flow chart of an electromagnetic visualization method according to 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 an electromagnetic environment visualization function provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of electromagnetic information management provided by an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a spatial clustering algorithm according to an embodiment of the present invention;
FIG. 6 is a loading flow chart provided by an embodiment of the present invention;
FIG. 7 is a schematic diagram of an organization of an electromagnetic spatial database provided by an embodiment of the present invention;
FIG. 8 is a schematic block diagram of an electromagnetic environment visualization information management system according to an embodiment of the present invention;
Fig. 9 is a schematic structural view of an electromagnetic visualization device according to an embodiment of the present invention;
Fig. 10 is a schematic structural diagram of another electromagnetic visualization device according to an 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 the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present 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 illustrate the technical scheme of the invention, the following description is made by specific examples.
Referring to fig. 1, a schematic flow chart is implemented for one embodiment of the electromagnetic visualization method provided in this embodiment, and is described in detail as follows:
Step S101, acquiring an electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to electromagnetic signals of the corresponding electromagnetic radiation sources.
An electromagnetic environment is an invisible environment that is invisible, invisible and exhibits dynamic diversity characteristics. In the process of information interaction between a person and an external environment, 75% of information comes from vision, so that when a low-orbit constellation electromagnetic environment is constructed, the low-orbit constellation electromagnetic visualization is an important method. Along with the development of the visualization technology and the space modeling technology, the radiation sources are arranged in a two-dimensional or three-dimensional simulation map, and the power range of the radiation sources is displayed more vividly and intuitively, so that each electromagnetic radiation source and the electromagnetic distribution thereof in each constellation system are visualized, and the electromagnetic environment is more vivid and intuitive.
The number of satellites of a single constellation system varies from tens to hundreds, each satellite consists of a plurality of spot beams, each spot beam is independently seen as a single radiation source in the modeling process, so that the number of the radiation sources of the constellation system is extremely large, the number of satellite constellations is large, satellite coverage beams of different constellation systems are mutually overlapped, the complexity of a frequency spectrum situation is brought, and the low-orbit constellation electromagnetic situation visualization system is greatly challenged: the method comprises the steps of large-scale radiation source dynamic target display, large-scale radiation source data real-time calculation, large-scale radiation source electromagnetic situation ultrahigh response speed and refresh speed (various forms such as contour lines, thermodynamic diagrams and the like), and the problems to be solved are researched and solved by how to layer, fine, visual, clear and vivid display electromagnetic situation information and natural environment elements related to the electromagnetic situation information due to the fact that constellation systems are numerous. The existing electromagnetic visual system has the problems that information crowding, shielding, mess and the like are necessary to be displayed visually when the number of radiation sources is increased to a certain extent; the characteristics of multiple dimensions such as time, space, frequency, energy, waveform and the like of the electromagnetic situation are difficult to comprehensively and quantitatively display; the multiple dimension relevance displays multiple problems such as incapability of being effectively displayed.
In order to accurately quantitatively evaluate electromagnetic interference of a low-orbit satellite system, the embodiment designs and displays a visual system based on a framework of a geographic information system (Geographic Information System, GIS) +KML file by researching a visual model of the low-orbit satellite system, packages an electromagnetic radiation source model into a callable or configurable KML functional component, realizes the visual display of an electromagnetic situation based on GIS through system configuration, namely, writes the radiation source into a 2D/3D KML file, superimposes the influence (considering a propagation path and environmental influence loss) of the radiation source and the radiation source on a digital map containing a topography representation, calculates and refreshes in real time, thereby realizing the visual display of the electromagnetic situation 2D/3D, supporting the visual display of single constellation, combined constellation or multi-constellation fusion electromagnetic situation evaluation and prediction, and realizing the virtual implementation of the simulation loading visual scene according to the topography data and hydrology, and weather environment.
The electromagnetic visualization method further comprises the following steps:
acquiring position information and electromagnetic signals of each electromagnetic radiation source in each constellation system;
calculating the detection change range of the electromagnetic radiation sources according to the position information and the electromagnetic signals of each electromagnetic radiation source and calculating a defective electromagnetic detection surface based on the space geographic environment, the meteorological environment, the hydrologic environment and the physical field environment;
And displaying a calculation result based on the geographic information system.
Step S102, carrying out 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 to analyze 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 the minimum intra-group difference and the maximum inter-group difference. For the visualization research of the low-orbit constellation electromagnetic environment, the characteristics, the attributes and the spatial positions of the spatial entities such as the low-orbit constellation electromagnetic radiation source to be researched are also required to be clear. For this purpose, a spatial cluster analysis model may be used to solve one or more structural features on the analysis processing spatial distribution, such as a near-far relationship, a topological relationship, an azimuth relationship, a density relationship, and the like between modes.
Meanwhile, the traditional data mining process is often a 'black box' operation, users can only passively accept mining results whether interested or not, and the results are often abstract and unintelligible. In the field of non-spatial data mining, initial progress is made in the aspects of data mining, data visualization technology and OLAP (on-line analytical) technology integration research in recent years, and a new hot spot of data mining and knowledge discovery, namely Visual Data Mining (VDM), is formed. The basic idea of the VDM is to break the "closure" of the traditional data mining algorithm, make full use of various data visualization technologies, support users to participate in the whole process of data mining in combination with own professional background in a completely open and interactive mode, and finally achieve the aim of improving the effectiveness and reliability of data mining, so that the embodiment can also perform visual analysis and analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system based on the VDM.
Optionally, the performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system according to a spatial cluster model algorithm includes:
And carrying out 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.
Alternatively, the present embodiment is implemented by
W(T)＝∑(u,v)∈TEw(u,v)
Determining the weight of the minimum spanning tree; where TE represents the edge set of the spanning tree T, w (u, v) represents the weight of (u, v), and (u, v) represents the edge connecting vertex u and vertex v.
For the connected weighted graph G, its spanning tree is also weighted. The sum of the weights on each side of the spanning tree T is called the weight of the tree, and is noted as:
W(T)＝∑(u,v)∈TEw(u,v)
Among them, the spanning tree with the smallest weight is called the Minimum spanning tree (Minimum SPANNING TREE) of G. The minimum spanning tree may be abbreviated as MST. The minimum spanning tree is applied to spatial clustering in that the MST itself has the features of: minimum span feature. The minimum span property of the MST, that is, the minimum span from any side of the MST to the rest nodes, accords 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 with the minimum mean square error standard.
The MST-based visual spatial clustering analysis model algorithm is characterized by using a Delaunay triangulation network tool and MST (minimum spanning tree) to take the adjacency (spatial adjacency) of geographic entities and other attributes together as a spatial clustering processing object, as shown in figure 5.
Step S103, based on the geographic information system, displaying the result of the cluster analysis through multiple layers.
The geographic information system has high-efficiency 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 maturation of GIS technology, it becomes possible to develop an electromagnetic environment visual information system based on GIS. As a basic geographic information platform, GIS performs unified management on space data such as a digital map and electromagnetic information attribute data, as shown in FIG. 7, GIS organizes an electromagnetic space database, and meanwhile, the powerful graphic processing and output capability of GIS provides visual data support for the system. From the application situation, the GIS technology plays an irreplaceable role in the aspects of acquisition, management, analysis, simulation, display and the like of the related spatial data of the electromagnetic radiation source, and plays an important supporting role in the aspects of electromagnetic situation and how to evaluate the electromagnetic environment.
GIS is a computer system based on a geographic space database and used for collecting, managing, operating, analyzing and displaying space related data under the support of computer software and hardware. From the graphics perspective, the GIS is a digital map or drawing which is convenient for computer processing and network transmission, can conveniently input, edit, display, inquire, space analysis and output printing space data, and can also utilize a three-dimensional dynamic simulation technology to simulate various elements to construct a simulation space which accords with reality and display complex space-time relations among various ground objects. The method adopts a geographic model analysis method to timely provide various spatial geographic information and assist related geographic research and geographic decision. Because GIS models and stores the geospatial space in a computer, it also has the functions of description, simulation and prediction of the study object. Compared with the information system in the conventional sense, the GIS has the characteristics of strong space analysis capability, wide data source, visual and vivid working mode and the like, and supports reasonable superposition of topography, weather and the like. The method is widely applied to the fields with high requirements on the functions of inquiring and analyzing the space data. The characteristics of the GIS system determine that the GIS system has unique advantages in application to electromagnetic situation visualization, and a good solution and thinking are provided for electromagnetic visualization of a low-orbit constellation system.
Specifically, the GIS can establish a topographic map of a low orbit constellation area and a distribution diagram of a required electromagnetic radiation source through graph acquisition and vectorization, a database technology is adopted to establish an electromagnetic radiation source basic geographic information database, and information such as characteristics, attributes, spatial positions, detection capability, communication capability and the like of the low orbit satellite electromagnetic radiation source is established and inquired through connection of an electronic map and the database.
The electromagnetic situation visualization of the low orbit constellation needs to be displayed, and not only the distribution situation of the electromagnetic field per se, but also the distribution of the electromagnetic field relative to the topography, the ground object and the atmosphere are needed to be displayed, so that the situation information of tens of thousands of dynamic satellite radiation sources reaching the ground surface after passing through the satellite-to-ground propagation path loss is dynamically, intuitively, vividly, clearly and smoothly displayed. It is desirable to comb the presentation or scheme of the low-rail constellation visualization. The electromagnetic visualization design is shown in figure 2,
The electromagnetic situation can be visualized in various expression forms, and basic methods such as graphics, tables, data, characters, voices and the like can be used. The electromagnetic signals are extremely complex and can not be clearly expressed only by one mode, so that not only are various methods and means adopted comprehensively, but also various modes are combined into a whole with perfect functions and mutually complemented as much as possible so as to fully reflect the actual electromagnetic situation.
In the visual display process, the embodiment can carry out visual system design and display based on the framework of GIS software and KML files, package an electromagnetic radiation source model into a callable or configurable KML functional component, realize the visual display of electromagnetic situation based on a GIS system through system configuration, namely, write a radiation source into a 2D/3D KML file, superimpose the influence (considering propagation paths and environmental influence loss) of the radiation source on a digital map containing topographic characterization, calculate and refresh in real time, and further realize 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 multi-constellation superposition can be realized, and the multi-layer display mode is adopted, so that the refined situation analysis can be realized, and the visual display is convenient.
Optionally, the geographic information system of the present embodiment may include: the system comprises a data input module, a search query module, a space analysis module, a statistical analysis module and a data output module, as shown in fig. 8.
The data entry module is used for updating the spatial information and the attribute data.
As is well known, geographic information entities have spatial and non-spatial properties, and correspondingly, spatial and non-spatial data. The present embodiment mainly discusses the problem of data structure organization of spatial data, and in fact, the input and organization of spatial data have become the bottleneck of GIS development at present, and the grid structure and vector structure of spatial data are two different methods for simulating geographic information. In analysing electromagnetic radiation source properties, characteristics, correlations, topology etc. it is often not necessary to analyse all terrain, topographical elements, in other words most of them, but only as a reference background for professional entities. Therefore, the technology route of vector grid combination based on MST visualization is proposed under the support of the spatial cluster analysis model:
And (3) scanning all maps and data with various scales, and structuring and integrating the maps and the data into an electronic map after geometric transformation and graphic finishing, namely acquiring the electromagnetic situation of each electromagnetic radiation source in each constellation system. Marking an electromagnetic target thematic information entity through a symbol marking function of the system on the basis of the electronic map: and corresponding attribute data information such as charts, characters, photos, multimedia, images and the like are hung on the electromagnetic target thematic information entity. And clustering the electromagnetic targets through a spatial cluster analysis model of the MST, and solving topological relations, distance relations and the like among the electromagnetic targets and among the electromagnetic targets in the electromagnetic target group.
In this embodiment, a pyramid-shaped data structure hierarchy is used to integrate a large number of maps with multiple scales of low-rail constellation electromagnetic space, the uppermost layer in the pyramid hierarchy structure is a data layer with a small scale, and the data layers with progressively larger scales are arranged downwards in sequence, so that the data layers are registered with corresponding areas on the ground, and the loading flow is shown in fig. 6.
Further, the search 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 the data in the GIS corresponds to the points, lines and faces of the map; the space analysis module is used for carrying out 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 an electromagnetic environment thematic map and a statistical chart; the statistical analysis module is used for carrying out statistical analysis on the query results, the spatial analysis results and the electromagnetic situation, and can summarize the analysis results and output the analysis results in the forms of electromagnetic environment thematic map and statistical chart; the data output module is used for outputting the statistical, analysis and decision results in the form of text, report or graph.
Specifically, under the guidance of the design thought, we determine to establish a map space index by taking the map as a unit; the space entity is divided into point, line and surface data according to geometric characteristics, a multi-source space data fusion technology is adopted, and for integration of different types of data, the integration is the basis for carrying out basic operations such as space data query and management, and the operation of a space analysis model and an auxiliary decision model program, 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 input module, a retrieval and query module, a statistical analysis module, a space analysis module, a simulation module, an auxiliary decision-making module and a data output module.
The space data and attribute data of the data input module can be input into a computer through input equipment such as a keyboard, a scanner, a digitizer and the like, and the data can be directly transferred into a GIS from other systems, and the module also provides functions of timely changing and supplementing the data. The operation of the database can be reflected on the map in time, and the operation of the map can be also represented in the database. The range of statistics may be set by the user himself, e.g. by a rectangular, circular or polygonal tool to determine the range size.
Optionally, the displaying, based on the geographic information system, the result of the cluster analysis through multiple layers includes:
Establishing a topography map of a constellation area and a distribution map of each electromagnetic radiation source according to the clustering analysis result based on a geographic information system, and establishing a geographic information database of the electromagnetic radiation sources by adopting a database technology;
And connecting the topography 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 types, attributes and distribution conditions of various electromagnetic signals, but also takes the distribution of electromagnetic fields relative to terrain, ground objects and meteorological changes into consideration and takes account, and the distribution of the electromagnetic fields and natural environment elements related to the distribution are displayed in a reasonable mode, so that vivid and visual control of global information in the real world is greatly enhanced.
Further, the embodiment can establish a low-orbit constellation electromagnetic environment information management system based on the GIS, as shown in fig. 4, and quantitatively analyze and integrate the aspects of electromagnetic radiation sources, electromagnetic signals, electromagnetic radiation propagation factors, utilization and management of an electromagnetic detection system and the like in the low-orbit constellation on a system level. The method comprises the steps of collecting and analyzing data of electromagnetic radiation sources and electromagnetic signals in a low-orbit constellation, and calculating influence effects of electromagnetic radiation, detection change range of the electromagnetic radiation sources, defected electromagnetic detection surfaces and the like, which relate to space geographic environments, meteorological environments, hydrologic environments, physical field environments and the like.
Optionally, the displaying, based on the geographic information system, the result of the cluster analysis through multiple layers includes:
at least one of spatial distribution, electromagnetic radiation range, electromagnetic signal propagation, tactical technical parameters, and electromagnetic frequency panorama of each of the electromagnetic radiation sources is displayed by multiple layers based on the geographic information system.
The electromagnetic radiation source space distribution display function based on the geographic information system is shown in fig. 3, and mainly displays the distribution condition of the electromagnetic radiation source of the low-orbit constellation on a digital map, including a communication radio station, a communication network, a radar station, electronic countermeasure equipment, a weapon system with a command control system, the distribution condition of the civil electronic radiation source and the like. The realization of the function can adopt a method of combining layering and comprehensive situation, wherein the layering method is mainly specially set for better embodying the electromagnetic environment in a certain field, and the comprehensive situation is set for embodying the overall situation display of the electromagnetic environment.
The electromagnetic radiation range display 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; the electromagnetic signal transmission display mainly displays the working states of various electromagnetic radiation sources of a low-rail constellation and the information circulation condition of a command control communication network, the busy state, the interfered state, the communication smoothness condition and the like of a communication line; 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 image 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 quantity statistics, radiation source organization sequences, main tactical application and the like can also be designed.
Optionally, in the low-orbit constellation electromagnetic emission evaluation process, the embodiment can independently extract electromagnetic radiation characteristics or situations under a single constellation, and can calculate and forecast complex electromagnetic situations after superposition and fusion of a multi-constellation system.
By way of example, the two-dimensional map interface is simulated, and visual operations can be performed after the simulation, for example, a constellation selection panel which is displayed first is arranged, all constellations are arranged, the selected constellations can be clicked, the names of the selected constellations become red, the satellites in the constellations can be checked by a right key, all the default satellites are selected, the selected/unselected satellites can be clicked, after the constellations and the satellites are selected, the topography, the weather and the ground feature are checked according to the requirement, the effect of electromagnetic emission on the two-dimensional map is displayed, and the darker the color represents the higher the electromagnetic intensity.
By way of example, the embodiment simulates a three-dimensional map interface, and visual operation can be performed after simulation. The three-dimensional map interface can comprise a common view and a polished view, for the common view, one constellation selection panel displayed at first arranges all constellations, the constellations can be selected by clicking, the selected constellation name turns red, the satellites in the constellations can be checked by right-clicking, all default satellites are selected, the satellites can be selected/unselected by clicking, after the constellations and the satellites are selected, the 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, one constellation selection panel is firstly displayed, all constellations are arranged, the selected constellations can be clicked, the selected constellation name becomes red, the right key can view the satellites in the constellations, the default satellites are all selected, the satellite selection/non-selection can be clicked, after the constellation and the satellite are selected, the 3D map is clicked, the polished surface view is selected, and the effect of electromagnetic emission on the three-dimensional map is displayed, wherein the three-dimensional map has four dimensions of slice direction, section plane, chamfer angle and cut block.
According to the electromagnetic visualization method, the architecture based on GIS software and KML files is adopted for carrying out visualization system design and display, an electromagnetic radiation source model is packaged into a callable or configurable KML functional component, the electromagnetic situation visualization based on a GIS system is realized through system configuration, namely, the radiation source is written into a 2D/3D KML file, the influence of the radiation source and the radiation source is superimposed on a digital map containing terrain characterization, real-time calculation and refreshing are carried out, thereby realizing the electromagnetic situation 2D/3D visualization display, supporting single constellation, combined constellation or multi-constellation fusion electromagnetic situation assessment and visualization display, and in the low-orbit constellation electromagnetic emission assessment process, the embodiment can independently extract electromagnetic radiation characteristics or situations under the single constellation and calculate and forecast complex electromagnetic situations after superposition and fusion of the multi-constellation system.
It will be understood by those skilled in the art that the sequence number of each step in the above embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
Corresponding to the electromagnetic visualization method described in the above embodiments, the present embodiment provides an electromagnetic visualization apparatus. Referring specifically to fig. 9, a schematic structural diagram of the electromagnetic visualization device 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 acquisition module 110 is configured to acquire 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 a 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 the geographic information system.
The electromagnetic visualization device realizes the visual display of the electromagnetic situation 2D/3D and the refined situation analysis.
The present embodiment also provides a schematic diagram of the electromagnetic visualization apparatus 100. As shown in fig. 10, the electromagnetic visualization apparatus 100 of this embodiment includes: a processor 140, a memory 150 and a computer program 151 stored in said memory 150 and executable on said processor 140, for example a program of an electromagnetic visualization method.
Wherein the processor 140, when executing the computer program 151 on the memory 150, implements the steps of the above-described electromagnetic visualization method embodiment, such as steps 101 to 103 shown in fig. 1. Or the processor 140, when executing the computer program 151, performs the functions of the modules/units in the above-described device embodiments, e.g. 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 accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing a specific function for describing the execution of the computer program 151 in the electromagnetic visualization apparatus 100. For example, the computer program 151 may be divided into an information acquisition module 110, a spatial clustering module 120 and a display module 130, each of which specifically functions as follows:
The information acquisition module 110 is configured to acquire 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 a 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 the geographic information system.
The electromagnetic visualization device 100 may include, but is not limited to, a processor 140, a memory 150. It will be appreciated by those skilled in the art that fig. 10 is merely an example of the electromagnetic visualization apparatus 100 and does not constitute a limitation of the electromagnetic visualization apparatus 100, and may include more or less components than illustrated, or may combine certain components, or different components, e.g., the electromagnetic visualization apparatus 100 may further include an input-output device, a network access device, a bus, etc.
The Processor 140 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. 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 device 100, such as a hard disk or a memory of the electromagnetic visualization device 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 memory card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, a flash memory card (FLASH CARD) or the like, which are provided on the electromagnetic visualization apparatus 100. Further, the memory 150 may also include both an internal memory unit and an external memory device of the electromagnetic visualization apparatus 100. The memory 150 is used to store the computer program as well as other programs and data required by the electromagnetic visualization apparatus 100. The memory 150 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of each functional unit and model is illustrated, and in practical application, the above-described function allocation may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium may include content that is subject to appropriate increases and decreases as required by jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is not included as electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. An electromagnetic visualization method, comprising:
Acquiring an electromagnetic situation of each electromagnetic radiation source in each constellation system, wherein the electromagnetic situation is determined according to electromagnetic signals of the corresponding electromagnetic radiation sources;
according to a spatial clustering model algorithm, carrying out clustering analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation system;
Based on a geographic information system, displaying 2D/3D visual display of electromagnetic situations through multiple layers, wherein the visual display comprises: and (3) performing electromagnetic situation visual display under single constellation and/or performing electromagnetic situation visual display with multi-constellation superposition.
2. The electromagnetic visualization method of claim 1, wherein the displaying the results of the cluster analysis by multiple layers based on a geographic information system comprises:
Establishing a topography map of a constellation area and a distribution map of each electromagnetic radiation source according to the clustering analysis result based on a geographic information system, and establishing a geographic information database of the electromagnetic radiation sources by adopting a database technology;
And connecting the topography map and the distribution map with the geographic information database to display the electromagnetic distribution of each electromagnetic radiation source in each constellation system.
3. The electromagnetic visualization method of claim 1, further comprising:
acquiring position information and electromagnetic signals of each electromagnetic radiation source in each constellation system;
calculating the detection change range of the electromagnetic radiation sources according to the position information and the electromagnetic signals of each electromagnetic radiation source and calculating a defective electromagnetic detection surface based on the space geographic environment, the meteorological environment, the hydrologic environment and the physical field environment;
And displaying a calculation result based on the geographic information system.
4. The electromagnetic visualization method of claim 1, wherein the displaying the results of the cluster analysis by multiple layers based on a geographic information system comprises:
at least one of spatial distribution, electromagnetic radiation range, electromagnetic signal propagation, tactical technical parameters, and electromagnetic frequency panorama of each of the electromagnetic radiation sources is displayed by multiple layers based on the geographic information system.
5. The electromagnetic visualization method of claim 1, wherein the geographic information system comprises: the system comprises a data input module, a search query module, a space analysis module, a statistical analysis module and a data output module;
The data input module is used for updating the space information and the attribute data;
the search query module is used for providing attribute-space logic query and space-attribute space query;
The space analysis module is used for carrying out 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 an electromagnetic environment thematic map and a statistical chart;
The statistical analysis module is used for carrying out statistical analysis on the query results, the statistical analysis on the space analysis results and the statistical analysis on the electromagnetic situation;
the data output module is used for outputting statistical, analysis and decision results in the form of text, report or graph.
6. The electromagnetic visualization method of claim 1, wherein the performing cluster analysis on the electromagnetic situation of each electromagnetic radiation source in each constellation according to a spatial cluster model algorithm comprises:
And carrying out 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.
7. The electromagnetic visualization method of claim 6, wherein the minimum spanning tree algorithm comprises: by W (T) = Σ (u,v)∈TE W (u, v)
Determining the weight of the minimum spanning tree; where TE represents the edge set of the spanning tree T, w (u, v) represents the weight of (u, v), and (u, v) represents the edge connecting vertex u and vertex v.
8. An electromagnetic visualization device, comprising:
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 electromagnetic signals of the corresponding electromagnetic radiation sources;
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;
The display module is used for displaying 2D/3D visual display of electromagnetic situation through multiple layers based on a geographic information system, and the visual display comprises: and (3) performing electromagnetic situation visual display under single constellation and/or performing electromagnetic situation visual display with multi-constellation superposition.
9. Electromagnetic visualization device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the electromagnetic visualization method according to any of claims 1 to 7 when the computer program is executed by the processor.
10. 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 electromagnetic visualization method of any of claims 1 to 7.
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