AgileDARN radar system is a kind of sensitive ground coherent high frequency radar system based on all digital phased array technology,which can realize the detection of Middle and high latitude ionosphere. In this paper,The digital signal processing of radar system is studied detailed.The mechanism of digital signal processing of radar system have been designed and analyzed.The FPGA is used to implement the signal transceiver,Amplitude-phase correction,Digital beam forming and digital filter for radar system, So the system can realizes flexible scanning of the direction map and improves the Echo orientation precision. The feasibility and effectiveness of the FPGA design is verified through the simulation experiments.
