LFMCW Radar Waveform Generator Design and Example Base on FPGA and DDS
Jintao Xiong · Modern Electronic Technique · 2005
The digital technology is a kind of waveform synthesis is widely used in radar systems, and the DDS method, which can generate LFM signal and arbitrary complicated waveform is attached importance increasingly. This paper analyzes the principle and output noise of the DDS, introduces the performance and parameter design of DDS chipAD9854 in detail. Then presents a novel application example the LFMCW radar waveform generator includes simulated radar echo generator system base on FPGA and two pieces of DDS, which can be used in radar interior function testing. At last analyzes the test result.