基于修正球坐标系的导引头滤波器设计与仿真  

Designing and Simulation of Tracking Filter for Radar Seeker Based on Modified Spherical Coordinates

作　　者：杨雅君[1] 廖瑛[1] 

机构地区：[1]国防科学技术大学航天与材料工程学院,长沙410073

出　　处：《系统仿真学报》2011年第B07期224-227,共4页Journal of System Simulation

摘　　要：通过对修正球坐标系下导弹-目标视线运动方程的推导和分析,采用目标当前统计模型,设计了一种导引头三通道跟踪滤波器,能仅根据视线角测量序列计算比例导引所需的视线角速率信息。仿真结果表明,该滤波算法能提供精确的视线角速率、距离、速度和视线角信息。Motion equations of missile-target LOS were modeled in modified spherical coordinates.According to derivation and analyzing of motion equations,there channel Kalman tracking filter was designed based on target＇s current statistics model.Associated with measured LOS angle value for proportion navigation,LOS rate was estimated trough the tracking filter.Simulation results illustrate the performance of tracking filter.This design method is practical for angle-only seeker to accomplish proportion navigation.

关 键 词：天线平台 卡尔曼滤波 视线角速率 当前统计模型 

分 类 号：TP271.72[自动化与计算机技术—检测技术与自动化装置] TP391.9[自动化与计算机技术—控制科学与工程]