电子学报Issue(4)：730-735,6.DOI:10.3969/j.issn.0372-2112.2014.04.017
单站定位中的散射体位置及散射距离的估计方法--合成运动的扩展卡尔曼估计
The Estimation of the Scatterer Position and Scattering Distance in the Single Station Location：The EKF Estimation Based on Synthetic Motion
摘要
Abstract
The circle fitting and virtual station algorithm is an efficient method to locate the target station position under the non-line-of-sight (NLOS) environment by using a single station .The scatterer position and the scattering distance are the key pa-rameters in this algorithm ,and decide the location algorithm ability directly .To decrease the multiplicative noises impact of the quadratic item during the estimation process ,the synthetic motion EKF method is proposed .The main idea of this method is that the non-line equation is approximate by the line equation in each iteration step .The motion information of the single station is used ,and that motion is switched to the motion of pseudo target station (PTS) according to the fundamental theory of the relative motion to establish the EKF equation .As a result ,the location precision also increased accordingly .The simulation results verify the perfor-mance of this method .关键词
合成运动/扩展卡尔曼/单站定位/散射体位置估计/散射距离估计/非视距Key words
synthetic motion/EKF/single station location/scatterer position estimation/scattering distance estimation/NLOS分类
信息技术与安全科学引用本文复制引用
杨天池,程娟,邵奇峰,孙磊..单站定位中的散射体位置及散射距离的估计方法--合成运动的扩展卡尔曼估计[J].电子学报,2014,(4):730-735,6.
