基于粒子滤波的组合定位系统目标跟踪算法  

Target Tracking Algorithm Research of Integrated Positioning System Based on Particle Filter

作　　者：田安红[1] 杨思源[1] 唐金文[1] 杜衡吉[1] 陆继建 张顺吉[1] 付承彪[1] 

机构地区：[1]曲靖师范学院计算机科学与工程学院,云南曲靖655000 [2]曲靖师范学院网管中心,云南曲靖655000

出　　处：《弹箭与制导学报》2015年第2期134-136,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：云南省科技厅青年项目(2014FD048);云南省教育厅科学研究基金(2013Y017);曲靖师范学院校级青年项目(2011QN018)资助

摘　　要：因GPS技术在楼群密集的城市不能单独完成定位,文中采用GPS/DTMB组合导航新方案,又针对传统二维机动模型的不足,研究三维下的平面变速转弯模型,并作为运动目标的机动模型,同时仿真对比分析不同粒子数目下的粒子滤波算法(PF)跟踪效果,结果表明,200个粒子的误差均值为4.590 6 m,400个粒子误差均值为2.377 6 m,滤波后的轨迹与真实轨迹基本重合,定位跟踪效果好,且粒子数目越多,误差均值、标准差、方差越小,即定位跟踪精度越高。证明了GPS/DTMB组合导航新方案的可行性。In order to overcome deficiency of location functional limitation of GPS in dense building urban areas, this paper adopts the new GPS/DTMB integrated navigation scheme, in view of the shortcomings of traditional two-dimensional dynamic modelthis paperthe planar variable-turn model under dimensional model, which is used as moving target maneuvering model, also, simulation the tracking effect un-der different particle numbers of 200 and 400 of particle filter（ PF） algorithm, theoretical analysis and simulation results show that mean er-ror of 200 particles is about 4. 590 6 m, 400 particles is about 2. 377 6 m, the filtering trajectory is consistent with the real trajectory basi-cally, which has good location tracking effect, and the more particle numbers, the smaller mean error, standard deviation, variance, the smaller the error of the mean, standard deviation, variance, this means that location tracking precision is higher. These proved the feasibil-ity of GPS/DTMB integrated navigation.

关 键 词：组合导航 粒子滤波算法 定位跟踪 

分 类 号：TN96[电子电信—信号与信息处理]