It's like a chaos world, no days, no more, no sound, nothing, more let a person collapse, even cried out with a loud voice, without a trace of echo.

这就像一个混沌未开的世界，没有天，没有地，没有声音，什么都没有，更让人崩溃的是，即使是大声呼喊，也得不到一丝回音。

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The noise effect on the motion compensation is discussed. To solve the problem, a new method 'which USES echo goodness-of-fit curve to smooth the centroid range trace and phase trace is proposed.

讨论了噪声对补偿的影响，提出了用回波数据拟合曲线来光滑质心距离轨迹和相位轨迹的方法。

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