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一种新的非视距环境下移动台定位算法 被引量：2

Novel positioning algorithm for mobile station under non-line-of-sight environments
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摘要 非视距传播已经成为制约蜂窝网络定位的主要障碍。为了抑制和减少非视距传播引起的位置估计误差,提出了一种稳健估计的移动台定位算法———基于最大似然估计的位置估计算法,不需要先验NLOS误差统计特性和时序测量等前提条件,抑制NLOS误差的影响。通过跟传统的最小-均方算法(ordinaryleastsquare)比较,仿真结果表明这种算法有效地提高了在非视距环境下的定位精度。 Estimation of mobile station location is made difficultly by non-symmetric contamination of measured time of arrival (TOA) data caused by non-line-of-sight (NLOS) propagation effects. A novel robust position estimation algorithm is proposed to reduce the effects of NLOS propagation on the location error. Simulation results show the improvement in location accuracy over current L-S algorithm in different channel environments.
作者 孙国林 郭伟
机构地区 电子科技大学通信抗干扰技术国家重点实验室
出处 《系统工程与电子技术》 EI CSCD 北大核心 2005年第2期232-233,259,共3页 Systems Engineering and Electronics
关键词 到达时间 非视距环境 最大似然估计 time of arrival (TOA) non-line-of-sight (NLOS) environment maximum likelihood estimation
分类号 TN929.53 [电子电信—通信与信息系统]
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参考文献11

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同被引文献15

  • 1杨龙,徐冬梅,张守信,董绪荣.关于北斗卫星导航系统的被动式定位算法比较研究[J].空间科学学报,2006,26(3):203-208. 被引量：6
  • 2Edward J Chrestopher. Electronically scanned TACAN an- tenna[J]. 1EEE trans antennas propagation, 1974,22 ( 1 ) : 12- 16.
  • 3SHESTAG L N. A cylindrical array for the TACAN system [J]. IEEE trans antennas propagation, 1974,22(1) :17-25.
  • 4Lee J Y, Kim J K,Yoon G.A digital envelope detection for blood pressure measure[C]//2001 proceeding of the 23rd an- nual EMBS international conference. Istanbul, Turkey:[s.n.],2001:226-228.
  • 5Paul Petrus. Robust huber adaptive filter[J].IEEE trans on signal processing, 1999,47(4) : 1129-1133.
  • 6Zhou Y,Chan S C,Ho K L. New sequential partial Update least mean m-estimate algorithms for robust adaptive syslern identification in impulsive noise[J]. IEEE trans on industrial electronics, 2011,58(9) ;4455-4470.
  • 7Zou Y,Chan S C,Ng T S. A robust M-estimate adaptive filter for impulse noise suppression [C]//ICASSP' 99. Phoenix, AZ : IEEE press, 1999 : 1765-1768.
  • 8Zou Yuexian,Chan Shing-Chow, TungSang Ng. Least mean M-estimate algorithms for robust adaptive filtering in impulse noise [J]. IEEE trans on signal processing, 2000,47 (12): 1564-1569.
  • 9刘涛,于兴旺.高遮挡环境下卫星数不足四颗的GPS定位研究[J].全球定位系统,2007,32(5):24-28. 被引量：6
  • 10龚成,郭英,齐子森.塔康导航系统机载中频信号数字化技术[J].空军工程大学学报（自然科学版）,2008,9(5):29-32. 被引量：12

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系统工程与电子技术
2005年 第2期

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