主要介绍了雷达模拟器的结构与功能，并阐述利用数学方法产生的伪随机分布函数，主要生成方法有混合同余法、逆变换法、函数变换法和拒绝-接收法，并进行举例说明。

The main generation methods consist of mixed congruence method, inverse transform method, function transform method and refuse-accept method, which are illustrated by means of giving several examples.

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同时，还利用一种满意度函数模型对生成的地形进行一定的数学定量分析。

Meanwhile, the paper take a satisfaction function model to carry out quantitative analysis surface of terrain.

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