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MMWCAS-RF-EVM: 距离分辨率出现错误

Part Number: MMWCAS-RF-EVM

按照Cascade_Configuration_MIMO.lua得到的带宽B=3159Mhz,距离分辨率=c/2B,距离分辨率应该是0.047m左右

但是在运行cascade_MIMO_signalProcessing.m得到的点云数据中,发现点云的距离与实际距离相差非常大,

图中,通过第六列的距离数据除以第四列的rangebin,得到距离分辨率是0.186m。

Q:被测物体距离大概等于0.047*rangebin,但是与matlab直接处理的距离差的非常多,是cascade_MIMO_signalProcessing.m或者是它的子函数哪里出现了错误吗?还是我的距离分辨率计算有错误?