偏心安装的导引头隔离度测量值的修正

Revising of Measurement Isolation Value of Seeker Installed with a Centroid Offset

针对偏心安装条件下导引头隔离度的测量偏差问题,介绍了一种导引头隔离度测量值的修正方法。构建了导引头在转台上偏心安装条件下的数学模型,推导了偏心安装引起的导引头输出角速度偏差,分析了这种偏差对导引头隔离度测量的影响,最后给出了一种导引头隔离度测量值的修正方法。仿真和测试证明了该方法的可行性,这对解决雷达导引头高精度指标测量问题具有重要指导意义。

The measured values from the isolation of seeker installed with a centroid offset commonly have bias. A data correcting method of the measurement isolation values of seeker is presented. The mathematical model of seeker installed on the turntable with a centroid offset is established. The angle- velocity errors caused by the centroid offset installation are derived for analyzing the influence of the angle- velocity errors on the measurement values of seeker. Finally,a revising method is given. Computer simulation and test result verify the feasibility of the proposed method. It is instructive for practical project in which missile tracks surface targets.