Research On The Method Of Long-Term Integration Of Radar Signal

Long-term integration of radar signal is a key technique of modern radar. The effective long-term integration of radar signal can greatly increase the power of radar and extend range of radar.This thesis introduces the theory of the radar signal processing first, the research and simulation argumentation of DDC, pulse compression,moving target detect is taken on. Then it researches the signal processing method of the long-term integration, and proposes a long-term integration algorithm based on coherent within segment non-coherent accumulation among segment. In this algorithm, all the radar signal are divided into several small sections, after all segments are finished with coherent accumulation, consider the non-coherent accumulation among segment based on a distance compensation,then can get the final integral results. Simulation results show that this method can integrate the signal effectively and improve the signal-to-noise ratio of the target signal.