介绍了应用在机载雷达伺服系统中的常增益滤波法的原理，以及实现模型和算法参数的选择方法。论述了在滤除角度噪声，替代角速度传感器构成速度环路完善系统校正，提供角度插值条件等方面的作用。

This paper presents the principle of fix-gain filter to airborne radar servo system, the model of realizing, and the method of selecting parameters of the model. And introduce the effect of fix-gain filter on angle noise filter, forming velocity loop by replacing sensor for perfecting system emendation and suppling angle interpolation.

TN820.3