α-β滤波器的基本问题分析及仿真研究  

Analysis and Simulation of Basic Issue of α-β Filters

作　　者：邱丽原[1] 邱杰[1] 

机构地区：[1]海军航空工程学院电子信息工程系,山东烟台264001

出　　处：《电讯技术》2016年第4期416-423,共8页Telecommunication Engineering

摘　　要：针对α-β滤波器滤波增益随采样时刻的增加而减小的问题,提出了一种根据位置滤波平均误差、速率滤波平均误差以及速度滤波效果确定滤波增益下降截止时刻的方法,并分析了可能影响滤波增益下降截止时刻的因素。仿真结果表明:通过该方法确定的滤波增益下降截止时刻可以使α-β滤波器的滤波效果达到最佳;滤波增益下降截止时刻与目标采样间隔的相关性最强,与过程噪声的相关性次之,与量测噪声的相关性最弱。With the increase of sampling,the filter gains of α-βfilter decrease. In order to solve thisproblem,a method of determining the last sampling time based on average position filtering error,averagevelocity filtering error and velocity filtering results is presented,and the influence factors of the last sampling time are analyzed. Simulation results show that the last sampling time determined by this method canmake the filter results best,and the target sampling interval has the highest correlation with the last sampling time,the process noise takes second place,and the measurement noise is the weakest.

关 键 词：雷达目标跟踪 Α-Β滤波 滤波增益 仿真分析 

分 类 号：TN953[电子电信—信号与信息处理]