Research on the three dimensional mathematic model of the land echo image in marine radar simulator

System modeling and simulation technology are utilized to model and simulate the echo image in a radar simulator. The display of the realistic radar´s echo image has direct relationship with the radar electromagnetic wave and the target characteristics. The mathematical model of electromagnetic wave can be constructed on the basis of wave propagation theory. The three dimensional mathematic model of echo intensity can be established according to the features of radar target. The establishment of targets´ echo image in a marine radar simulator is satisfied by relevant algorithms with the application of the established electromagnetic wave mathematical model and the three dimensional mathematic model of echo intensity.