This delay can cause "comb filtering" (phase cancellation and addition), which alters the miked signal's tone.

这些延迟会造成“梳状滤波效应”(相位的抵消和叠加)，这会改变拾取信号的音质。

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With the signal frequency known, the filter with a given frequency delay is designed for an image target detection. The experiment proves that the filtering effect is good.

实验证明，将这一结论推广运用于空域中，对已知频率的信号，设计特定频率延迟的滤波器应用于图像目标检测，效果良好。

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And then the paper gave the filtering algorithms for solving the problem of in-coordinate interval and measurement delay.

然后在此基础上，提出了采用非等间隔并解决滞后的滤波算法以解决上述问题。

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