在已有数据和理论模型的基础上，提出了雷达回波强度的计算方法，并对这种新型高度计系统进行了计算机模拟。

Based on available data and theoretical models, the method of computing the amplitudes of the radar returns and the computer simulation of this neW altimeters is presented.

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雷达高度计回波模型是设计、检验高度计跟踪算法的基础，是高度计设计的关键性环节。

As the basis of the tracking algorithm, an echo model is the key to radar altimeter design.

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为了给LFMICW雷达高度计高度提取算法提供计算机模拟数据源，需要对高度计的大地回波进行建模和仿真。

In order to provide simulated data source for LFMICW radar altimeter height detection algorithm, terrain return of LFMICW altimeter needs to be modeled and simulated.

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