电视导引头视线角速度数据滤波实验研究  

Experimental Study on Filtering Data of Line-of-Sight Angular Rate of a TV Homing Seeker

作　　者：高卫[1] 孙奕帆[1] 原银忠[2] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094 [2]中国电子科技集团公司第二十七研究所,河南郑州450047

出　　处：《光学与光电技术》2016年第6期35-38,共4页Optics & Optoelectronic Technology

基　　金：试验技术研究重点项目(BZ00DZDK0810)资助项目

摘　　要：导引头对目标视线角速度的准确测量是导弹实现比例导引律的前提条件。对于速率陀螺稳定平台式导引头,由于速率陀螺固有的高频电噪声以及搭载平台的随机扰动,会导致导引头输出信号存在大幅随机噪声,无法实现视线角速度的准确测量。通过实验研究了一种搭载飞艇使用的电视导引头测量数据的滤波方法。基于对导引头原始输出数据的分析,获得随机扰动的特征频率,采用相应截止频率的低通滤波器对导引头输出数据进行数字滤波,有效滤除了陀螺高频电噪声和源自搭载平台的低频噪声,实现了对视线角速度的准确测量。The ability of a homing seeker for measuring line-offsight angular rate accurately is necessary in order to realize the missile proportional guidance law. For the gyroscope-stabilized seeker loaded on a flying platform, due to the inherent high-frequency electronic noise of the rate gyroscope and the disturbance of the platform, there is large-amplitude stochastic noise in the output data of the seeker and the true line-of-sight angular rate cannot be obtained. The method for filtering the noise in the output data of a TV homing seeker loaded on an airship is investigated experimentally in the paper. The charac- teristic frequency of the disturbance due to the airship is acquired by analyzing the original output data of the seeker. By u- sing a lowpass filter with the corresponding cut-off frequency, the high-frequency electronic noise of the gyroscope and the low-frequency noise due to the airship are filtered successfully from the output data of the seeker and as a result, the true line-obsight angular rate is obtained with the seeker.

关 键 词：电视导引头 视线角速度 信号处理 数字滤波 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程]