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IWR1843: 3个发射天线的相位如何校准？

chun liu
Prodigy 100 points
Part Number: IWR1843

使用IWR1843+自己设计的天线运行MRR例程demo，使用MRR、关闭USRR，我们发现天线的检测最大距离的方向不是垂直于雷达板的轴向，相对于0°轴向会有偏转一个角度。我们怀疑MRR使用3个发射天线合成1个波束时，3个发射天线通道的相位不一致而导致的。请问3个发射天线的相位要如何校准或者做相应的相位补偿？