CC2640R2F LaunchPad AOA 天线

dev.ti.com/.../ble_aoa.html

请您看一下上述链接

An array of antennas with well-defined properties is used, and the receiver will switch quickly between the individual antennas while measuring the phase shift resulting from the small differences in path length to the different antenna.

使用具有明确定义的属性的天线阵列，接收器将在各个天线之间快速切换，同时测量由于通向不同天线的路径长度的微小差异而导致的相移。

以及

dev.ti.com/.../ble_aoa.html

I/Q samples are used to estimate the angle. When the receiver gets AoA packets, the RF core will trigger an event that will lead to start the antenna switching (all of these are done prior to I/Q sampling). Then, the RF core will start sampling the I/Q data at the beginning of the AoA tone (0xFF @ 250KHz) and the sampled data will be stored at the RF RAM.

I / Q样本用于估计角度。当接收器收到AoA数据包时，RF内核将触发一个事件，该事件将导致天线切换开始（所有这些操作均在I / Q采样之前完成）。然后，RF内核将在AoA tone 的开始（0xFF @ 250KHz）处开始对I / Q数据进行采样，并且采样的数据将存储在RF RAM中。