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IWR1843: IWR1843 ADC原始数据做FFT 有0.0625米的偏差

Part Number: IWR1843
Other Parts Discussed in Thread: IWR1642

工程师你好,我通过串口将原始IQ数据从ADCBuf发送出来,

对其进行FFT,并执行相应的频谱细化算法(CZT),贵公司用的ZOOMFFT算法,

但发现距离严重失真,20cm到50cm偏移了大概6.25cm,请问这是硬件问题,还是我读取得不正确;

附上原始数据