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IWR6843ISK: 屏住呼吸无法成功检测。

Part Number: IWR6843ISK
Other Parts Discussed in Thread: IWR6843, IWR1443

请问我用IWR6843ISK和mmaveICboost运行vital sign 的demo时,当我屏住呼吸时为什么呼吸率没有显示为0?屏住呼吸很久还是没有显示为0,呼吸的相位变化在0附近,但是chest displacement曲线并不恒定。请问是算法的缺陷还是硬件哪里没有校准?我测量的时候雷达对齐胸部了。就是屏住呼吸无法成功检测。