| Based on the relevant research results and real demands in some LFMCW radar,this dissertation involves the signal algorithm theory study and realization includingsignal detection and estimation and eliminating range-velocity coupling.The main research work and results can be summarized as follows:1. Algorithm study. To solve the problems of range-velocity decoupling and signal detection and estimation, new methods of combining MTD with velocity pairing and united shift window are proposed.2. Algorithm emulation. To validate the algorithm, algorithm emulation is accomplished by MatLab soft.3. Algorithm realization. Using the DSP board based on two ADSP-21160 and PC/104-Plus format as the hardware platform, this paper realizes the signal processing arithmetic of the LFMCW radar with assembly language. The results of software simulator and hardware debugging indicate that the work is effective and coincident with the system's demand.The research results indicate that the signal processing system is coincident withthe radar system's demand in function. And the main parameters gained by test reachthe radar system's design demand. |
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