Study on simulation of signal processing system of space surveillance radar

This paper simply introduces the structure and working principles of one space surveillance radar simulation system, and analyzes the signal processing (SP) simulation system. In order to improve the radarpsilas ability to detect multiple targets and keep the false alarm probabilities constant, 2D-OS-CFAR and Clutter-Map CFAR are adopted as the algorithms of CFAR, and the detection threshold coefficient of OS-CFAR is studied and modified. Finally it gives the simulation results. The results show that the signal processing sub-system can detect the targets and their position, velocity exactly. And it can also satisfy the need of detecting far target, high measuring precision, the ability of detecting multi-targets and the false alarm probabilities in heavy clutter background.