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FMCW
FMCW(Frequency Modulated Continuous Wave),即调频连续波。其基本原理为发送具有一定带宽、频率线性变化的连续信号,再对接收到的连续信号进行快速傅里叶变换,通过发送与接收信号的频率差来计算两个信号的时间差,最后与脉冲波雷达物位计一样,由时间差得到对应的距离值。具有无距离盲区、高分辨率和低发射功率等优点。
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