Design of Moving Target Detection System Based on FPGA

This paper puts forward a kind of radar moving target detection system based on single chip of field programmable gate array (FPGA), including the input buffer, string and transformation, window function, Doppler filter group, the constant false alarm and output caching function modules. Doppler filter group is 16 point FIR filter direct filtering method, constant false alarm circuit adopts alarm circuit which choose larger in the average of adjacent cells. The experimental results show that the moving target detection system can effectively detect targets. Compared with traditional system performance this method is more stable and has stronger anti-interference ability.