摘要
基于加权最小二乘法,建立了红外多站无源系统定位算法的数学模型,给出了方程的求解过程,并讨论了算法的实现.采用加权最小二乘法可有效的融合多个站点的信息,从而可提高系统的定位精度和可靠性.仿真结果表明:定位时所使用的站点数目越多,定位目标与站点的相对位置越好,距离越近,定位精度就越高,这对近程高精度定位的研究具有借鉴作用.
Based on the weighted least square method, the mathematics model of the location algorithm about infrared multi-sites passive system is established, meanwhile the equation is offered and the realization of the algorithm is discussed. Because of the weighted least square method, much detected information can be combined efficiently, and the positional accuracy and reliability of system can be raised. The simulation result show that a large number of sites relates to a proper relative position to the sites,and a short distance between the target and sites corresponds with a accurate position.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2005年第7期1001-1004,共4页
Acta Photonica Sinica
基金
西安市科技局攻关计划(GG9907)
陕西省教育厅科技立项项目(04JK257)
关键词
红外多站
无源定位
加权最小二乘法
定位精度
Infrared multi-sites
Passive location
Weig.hted least square Method
Positional accuracy
