Research of Radar Level Instruments′ LFMCW Signal
Feng Weizhong · Modern Electronics Technique · 2009
Direct Digital Synthesis(DDS) is a new way to synthesize frequency which is developing quickly these years,it is used in many fields.Based on the principle and application of DDS,LFMCW signal of the radar level instrument is generated by FPGA,the principium and circuit design are mainly introduced,the imitation and experiment of FPGA design are given,the experiment results show the design is feasible,it has a certain practical value of the radar level instruments and other radar systems.