Study on Application of Digital Terrain Data in Radar Image Simulation
Wen Ouyang · Jisuanji fangzhen · 2005
The origination, development and trend of digital terrain elevation data, digital feature analysis data, vector map and digital geographic Information exchange standards are described in this paper. Data structure, error range and other factors of the databases are presented briefly. Under the certain terrain, partition the gaming area into many clutter patches, calculate the reflect power of each patch, calculate the brightness of every pixel of the picture, then the simulated radar image is obtained. Method and process of conversion of the database, transformation of the coordinate system, processing of the terrain geometrical effect etc are discussed in details. Applications in the design of the radar train simulator show the great value of digital terrain database.