摘要
由于无线网络环境中客观存在非视距(NLOS)误差,采用传统的定位方式会对移动台位置的定位造成很大的误差。通过对NLOS误差产生的原因及特点的分析,找出了鉴别NLOS误差及其抑制NLOS的方法———无约束条件的非线性加权最小二乘算法,减少了NLOS对定位精度的影响,从而提高了无线定位技术的准确度。
There is NLOS error in the wireless network and it can work badly because of the error in orientation of mobile IP locality if the conventional mode is applied to it. By analyzing the causes and features of NLOS＇ error, the paper puts forward a means of discriminating and restraining NLOS＇ error under non-restraint condition of nonlinearity weighted minimum two multiplicative algorithm, which reduces the influence of NLOS on orientation＇s precision and thereby improves the accuracy of wireless orientation technology.
出处
《重庆邮电学院学报（自然科学版）》
2006年第2期231-234,共4页
Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
关键词
无线定位
非视距
鉴别
抑制
wireless orientation
non-line-of-sight
discriminate
restrain
