Radar imaging simulation method for realizing distributed large scene and radar imaging simulation system for realizing distributed large scene

Abstract

The invention discloses a radar imaging simulation method for realizing a distributed large scene and a radar imaging simulation system for realizing the distributed large scene. The method comprisesthe steps: S1 imaging basic data processing: including topographic and geophysical data classification and terrestrial digital elevation model processing; S2 scanning range determination and division:the scanning range, including the distance direction size range and the azimuth scanning range, is calculated according to the loading position and the attitude parameter, the range and the resolution of radar and the scanning range parameter of the antenna, and the scanning range is divided into multiple regular facet units along the distance direction and the azimuth; S3 calculation of the backscattering coefficient of the facet unit model and radar image feature fusion are performed so as to obtain a beam imaging data; and S4 the simulation image is generated and displayed. The method andthe system can be used for different models of airborne radar to perform topographic and geophysical simulation imaging of different regions.

Description

technical field [0001] The invention relates to the technical field of radar imaging simulation, in particular to a method and system for realizing distributed large-scene radar imaging simulation. Background technique [0002] Radar imaging provides information support for battlefield reconnaissance, surveillance, navigation and precision strikes of combat aircraft, and has the characteristics of all-weather mapping of the ground and sea. At present, one of the key points of military flight training is to study how to make reasonable use of the map surveying and mapping functions of airborne radars, so that the pilot, autopilot and radar system can achieve the best cooperation, and realize the accurate targeting of the target under the condition that the pilot's operation is as simple as possible. Discriminate and attack effectively. However, due to the constraints of high cost, limited training site environment, and large number of trainees, it is difficult to carry out r...

AI Technical Summary

Problems solved by technology

[0006] (1) Foreign countries have blocked my country's technology, while most of the country's domestic research is limited to theoretical research, and it is difficult to see commercial products;

[0007] (2) The simulation imaging algorithm is complex, with a large amount of calculation and poor real-time performance. It needs to be accelerated by hardware, but the research and development cost is high;

[0008] (3) Each system module of the imaging simulation software is executed in a serial manner, which is slow and inefficient, and cannot meet the imaging requirements

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