In the precision detection of a millimeter wave, the encounter of the detector and the objects can not be forecasted totally because of a lot of noise and disturbance existing in the complex battlefield, it will cause fantasticality and distortion of the echo retaked by the detector, and the stably of the echo become bad, as a result, it will reflect the result of the detection, so it is necessary to filter the echo retaked by detector.
在弹载毫米波精确探测系统中，由于复杂多变的战场环境中存在大量的干扰及噪声，探测器与目标的交会姿态不能完全预测，造成探测器获取目标回波产生奇异和变形，回波特征的稳定性变差，从而影响了目标的探测和识别，因此对探测器的回波进行有效的滤波处理是十分必要的。
Group delay distortion, attenuation distortion and echo will cause the intersymbol interference.
影响数据传输质量的主要因素为：群时延失真、衰减失真以及回波引起码间干扰；
For the demands of studying the rules of returned echo distribution, distortion detective resolution and so on of a digitized radar, a weather radar equation suitable to the boundary region of precipitation field was developed.
目前使用的天气雷达方程不能用于雨区边界附近。为了研究数字雷达平均回波强度的分布、畸变和探测分辨率等规律的需要，本文发展出了可用于雨区边界的天气雷达方程。
Aghast, we discover how class oppression, sexism, chauvinism and the distortion of history echo through everyday conversation.
我们惊异地发现，阶级压迫，性别歧视，沙文主义和历史的曲解，无一不通过日常对话而得到折射。
The Developed Model of the Seabed Distortion Caused by the Angular Beam Width of Echo Sounders in Bathymetric Survey
海底地形测量波束角效应改进模型