穿墙雷达人体呼吸检测，是生命体探测的热门研究方向，本程序用matlab仿真，模拟频率步进雷达的探测方法，通过MTI滤波滤除墙体回波，通过FFT相干积累获取人体呼吸频率-Through-wall radar to detect human breath, is a living body to detect a hot research direction, the procedures used matlab simulation, simulation stepped frequency radar detection method, MTI filter to filter out the echo wall, get through FFT coherent accumulation of the human respiratory frequency