针对典型的浅海波导环境，通过计算机仿真研究了目标位于波导中间深度条件下时间反转处理增强信混比的能力以及目标深度的变化对信混比增强能力的影响。
The capability of time reversal processing for echo-to-reverberation enhancement is studied using computer simulation under the condition that target is in the middle of the shallow water guide.
所述反转持续的较短时间根据系统条件的不同而变化。
The short period of time of reverse rotation is varied based upon system conditions.
本文详细讨论了发生对比度反转的原因和条件，也讨论了像在对比度反转中的一些细节问题。
In this article, we shall minutely discuss the reasons and conditions of the contrast reversal. We shall also discuss some of its details in the image of the grating.
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