延迟时间会大于或等于电磁信号传输距离除以光速的比值。
The latency cannot be less than the distance the electromagnetic signal has to travel divided by the speed of light.
实验结果表明，该方法能准确估计出时域混叠信号的延迟时间。
Experimental results showed the method could estimate the delay time of the overlapped signals accurately.
在雷达信号处理中常常要用到延迟时间可调的延迟器件，但目前大多数延迟器件都不能满足要求。
The delay device that the time delay is continuously variable is often needed in radar signal processing, but most delay devices don't satisfy the need.
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