Fpga-based Radar Signal Processing System Design

Radar signal processing is an important part of radar system. Nowadays, digital signal processing develops rapidly. And digital signal processing technology receives a wide application in radar signal processing. Because of the applications in digital signal processing, FPGA has gained especially important status in radar signal processing.Aim at the realization of radar signal processing by Field Programmable Logic Gate Arrays (FPGA), some work has been done about the following aspects in the paper.Firstly, analyze some of the important pulse compress signals. By comparing the time-domain waveforms, frequency-domain waveforms and ambiguity diagram, we gain the characteristics of different signals and their processing method. What's more, we have a view of the advantage and disadvantage between different methods.Secondly, we discuss the theory of basic radar signal processing such as pulse compress, Moving Target Detect (MTD), and Constant False Alarm Rate (CFAR). And we also compare different signal processing method for each part. Then we take LFM signal for example to simulate the radar echo wave signal processing in MATLAB.At the last, we realize radar signal processing in FPGA, by using the Xilinx's free IP core and VHDL language in Xilinx ISE6.3i software integration environment.