摘要:三角波调频多普勒定距系统主要应用了线性三角波调频信号处理技术和多普勒信号处理等相关知识,具有良好的距离选择性以及抗回波噪声干扰性强等特点。
本篇论文对三角波调频定距信号处理进行了理论上的研究,并从三角波信号开始到目标回波信号直到二者混频得到差频信号的过程进行了分析和推导,并据此给出可行的定距方案,通过Matlab/Simulink软件平台进行整个定距系统模块化的构建以及给定具体数值的定距过程的仿真,验证所选定的定距方法的可行性目的。5156
关键词:调频多普勒,三角波,差频信号,信号处理,Simulink仿真
Title Fixed distance signal processing of triangle wave FM based on Matlab/Simulink simulation
AbstractThe theory and method of the triangle wave linear and sequential FM wave signal and the knowledge of the processing of the Doppler frequency signal are used in the fixed distance system of FM Doppler, which is good at choosing distance and capable of anti-interference. In this thesis, the fixed distance system of triangle wave FM Doppler is worked over. The process is particularly speculated and analyzed which is since the signal that is radiated until which is returned to a receiver associated with the system then output a different frequency signal by mixed these two signals. According to the analysis, the basic fixed distance scheme is proposed. Then the feasibility of the method of the fixed distance system is proved by the Matlab/Simulink simulation, which includes modeling the modules of the fixed distance system and simulating the process with the data already known.
Keywords :FM Doppler, the triangle wave, the difference frequency signal, signal processing, simulation
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