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IWR6843: Rx通道增益/相位偏移的补偿系数计算如下:c[i] = conj(Rx[i])/|Rx[i]|^2 * |RxMin|,为什么取最小值?

Part Number: IWR6843

你好!

Rx通道增益/相位偏移的补偿系数计算如下:c[i] = conj(Rx[i])/|Rx[i]|^2 * |RxMin|, for i=0,…, numvirtualantennas1
Rx[i]是在步骤1中找到的距离索引处,从radarCube矩阵中保存的零多普勒列中提取的天线符号。

rx通道相位和增益估计是通过寻找虚拟天线的幅值平方来完成的,这个最小值用于缩放单个天线,以便系数的幅值总是小于或等于1。

想请教的是幅度校准为什么取最小值?而不是最大值?