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本文从船干扰反射波时距曲线方程的理论推导入手，分析了多种情形下船干扰反射波时距曲线的特征，从中找出船干扰反射波时距曲线的变化规律。结合IBM3081机在消除部干扰时所采取的处理方法，简单介绍了Enhance模块的基本原理及消除船干扰的效果。
In this paper, the theoretical derivation of the ship-borne reflected wave time-distance curve equation is started. The characteristics of the ship-borne reflected time-distance curve under various situations are analyzed. The variation law of the time-of-flight curve of the ship jamming reflected wave is found out. Combined with the treatment taken by the IBM3081 to eliminate interference from the Ministry, the basic principle of the Enhance module and the effect of eliminating ship interference are briefly introduced.