基于随机跳变滤波的天线罩误差修正  

A Correction Algorithm of Radome Error Based on Optimal Filtering Theory of Structure Stochastic Jump System

作　　者：曾宪伟[1] 方洋旺[1] 伍友利[1] 王洪强[1] 王锋[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《中北大学学报（自然科学版）》2010年第3期295-299,共5页Journal of North University of China(Natural Science Edition)

摘　　要：针对天线罩误差斜率问题,建立了视线角速度估计模型,基于结构随机跳变系统最优滤波理论,提出了一种新的天线罩误差斜率修正的视线角速度估计算法;考虑算法的实时性和快速性,同时推导了两种简化算法.仿真结果表明天线罩误差斜率在较大范围内随机变化时,3种算法都能实时地对天线罩误差进行修正,能够准确地估计视线角速度,明显减小导弹脱靶量.但3种算法都具有不同的计算复杂度和精度,在实际应用中可根据计算时间和内存大小不同的需要选择合适的算法,以满足工程需要.An estimate model of line of sight（LOS） angular velocity aimed at radome error slope was presented.Based on the optimal filtering theory of structure stochastic jump system,a new algorithm for estimating LOS and correcting the radome error was proposed.At the same time,other two simple algorithms were deduced.The results of simulations show that when radome error slope stochastically changes in a wide range,all above three algorithms can correct the radome error,precisely estimate LOS angular velocity and reduce the missing distance obviously.But three algorithms are with different complexity and precision.According to different requirements of computing time and memory size in the application,the appropriate algorithm is selected to meet all the conditions in the project.

关 键 词：天线罩误差斜率 随机跳变滤波 视线角速度 脱靶量 

分 类 号：TN820.8[电子电信—信息与通信工程]