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蓝牙AOA定位中关于天线间距问题



蓝牙AOA定位的天线阵列设计中,天线间距应小于1/2波长,请问这个波长是蓝牙信号波长,还是250K正弦波的CTE波形的波长?

同理,在通过相位差,计算到达角时,所使用的波长,是哪一个波长?