您好:
这个是使用sdk5.30和两个天线切换,接收到的IQ原始数据,这样的IQ数据频繁的接收到0值正常吗?
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您好,
也不能说是异常,受环境影响较大。
您可以参考https://dev.ti.com/tirex/content/simplelink_cc13xx_cc26xx_sdk_5_30_01_01/docs/ble5stack/ble_user_guide/html/ble-stack-5.x-guide/localization-index-cc13xx_cc26xx.html#valid-i-q-samples-for-angle-calculation。建议您可以获取更多的iq参数,然后绘制相应的iq曲线。
从理论上可以得到正弦曲线,但是实际情况会受环境影响,参考如下帖子:https://e2echina.ti.com/support/wireless-connectivity/bluetooth/f/bluetooth-forum/215951/launchxl-cc26x2r1-iq?tisearch=e2e-sitesearch&keymatch=iq# 和 https://e2echina.ti.com/support/wireless-connectivity/bluetooth/f/bluetooth-forum/219841/cc2652r-cc2652r-boostxl-aoa/694214?tisearch=e2e-sitesearch&keymatch=iq#694214。在空旷的地带甚至微波暗室测试可能会更好一些。另外注意所有设备应保持在同一平面上,距离间隔1米左右。
希望能够对您有所帮助。