Radar target location analysis method based on graphic geographic information

Abstract

The invention discloses a radar target location analysis method based on graphic geographic information. According to the method, the geographic information of the might range is mapped to image data based on a certain corresponding relationship according to the radar target location characteristics, and a corresponding local data area and a statistical data area are created with the image pixel locations acting as indexes; local information is edited on the image according to the actual demand, and the local area are updated in the local data area; the target geographic coordinate information is mapped to the image data in application, the data of the local data area corresponding to the image location are acquired, and the location relationship between the target and the related area is judged according to the data value; meanwhile, counting updating of the statistical data area can also be performed, and a statistical graph is formed through normalization. The geographic location information under a radar polar coordinate system is converted to plane image information so that the algorithm is simple and rapid, judgment of the target location can be efficiently completed in real time, and local monitoring, alarm and statistical functions can be realized.

Description

technical field [0001] The invention belongs to the technical field of target position analysis, in particular to a radar target position analysis method based on graphical geographical information. Background technique [0002] It is a basic algorithm of computer graphics to determine the inclusion relationship between points on the plane and simple polygons, and it is widely used in computer graphics processing, pattern recognition, CAD and scientific computing visualization. In the radar duty system, the identification of the positional relationship between the target and the given area also has a wide range of application requirements. The positional relationship of the no-fly zone, etc. [0003] There have been many classic algorithms for the judgment of the inner and outer points of polygons, such as ray method, cross product discriminant method and angle sum discriminant method, among which the ray method is the most widely used: draw a ray from the detection point t...

AI Technical Summary

Problems solved by technology

For radar targets, there are many targets and fast data update. In actual use, there may be multiple polygonal areas, and the area complexity is high, that is, there are many polygonal vertices. Therefore, the corresponding position points that need to be processed are judged and calculated. The amount is large, and there is a problem of computational efficiency in application

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