伪加速度修正自适应α-β滤波算法研究  

Study on Pseudo-acceleration Correction Self-adaptive α-β Filtering Algorithm

作　　者：江桥[1] 罗利强[2] 

机构地区：[1]中国人民解放军91404部队 [2]西安电子工程研究所

出　　处：《火控雷达技术》2005年第2期9-12,28,共5页Fire Control Radar Technology

摘　　要：针对现有的球坐标系下无修正伪加速度自适应α- β滤波算法的缺陷,提出了伪加速度修正自适应α- β滤波算法。该算法选用球坐标系作为跟踪坐标系,建立了伪加速度修正的目标运动模型,消除了伪加速度对滤波算法跟踪精度的影响。通过仿真,证实该改进算法的滤波精度优于不带伪加速度修正的α- β滤波算法,同时计算量并没有显著的增加,易于工程实现,特别适合多目标的实时跟踪。This paper puts forward the pseudo-acceleration correction self-adaptive α-β filtering algorithm pointing to the defect of the pseudo-acceleration self-adaptive α-β filtering algorithm without correction under current spherical coordinate. The spherical coordinate is taken as the tracking coordinate for this algorithm, and the target moving model is established for pseudo-acceleration correction to remove the influence of pseudo-acceleration to filtering algorithm tracking accuracy. The filtering accuracy of improved algorithm is better than the α-β filtering algorithm without pseudo-acceleration through the simulation, and the calculation is not increased notably, so that the engineering will be easily realized and this algorithm is suitable for real-time tracking of multi-targets.

关 键 词：伪加速度 自适应 α-β滤波算法 球坐标系 跟踪滤波器 雷达 

分 类 号：TN957.513[电子电信—信号与信息处理] TN713[电子电信—信息与通信工程]