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一种改进的减小NLOS影响的定位算法 被引量：3

An Improved Location Algorithm for Mitigating the Influence of the NLOS Propagation
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摘要 根据蜂窝网络中非视距(NLOS)传播时延服从指数分布的统计特性,在视距重构/平滑算法的基础上,提出了一种改进的减小NLOS影响的定位方法。该方法首先根据NLOS传播时延的统计特性,估计NLOS传播时延的均值和方差;然后对到达时间差(TDOA)测量值进行修正,进而估计移动台(MS)位置;最后对不同时刻估计的移动台位置进行加权处理,进一步减小NLOS的影响。仿真结果证明该方法能够有效提高定位算法的定位精度。 Based on the statistical property of the non-line-of-sight （NLOS） propagation in cellular networks and the line-of-sight（LOS） reconstruction / smoothing algorithm, an improved location method is presented to mitigate the influence of the NLOS propagation. First, the mean and variance of the NLOS propagation delay are estimated using the statistical property of the NLOS propagation delay; and then the measurements of time difference of arrival （TDOA） are modified to estimate the location of mobile station （MS） ; finally, the locations of the MS of different time are weighted to further mitigate the influence of the NLOS propagation. The simulation results prove that the proposed method can improve the location accuracy of the location algorithm effectively.
作者 杨洪娟 刘宁庆 李博
机构地区 哈尔滨工业大学通信技术研究所
出处 《科学技术与工程》 2009年第17期4969-4972,4977,共5页 Science Technology and Engineering
关键词 定位 非视距传播 到达时间差 传播时延 position location non-line-of-sight propagation time difference of arrivalpropagation delay
分类号 TN929.53 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

  • 1Woo S S,You H R,Koh J S,et al. The NLOS mitigation technique for position location using IS - 95 CDMA networks. IEEE VTC, 2000; ( 6 ) :2556-2560.
  • 2Shen X M, Mark J W, Ye Jon. Mobile location estimation in celluar networks using fuzzy logic. IEEE VTC, 2000 ; ( 5 ) :2018 -2114.
  • 3Chan Y T , Ho K C. A simple and efficient estimator for hyperbolic location. IEEE Trans on Signal Processing, 1994; 42 (8): 1905-1915.
  • 4邓平,刘林,范平志.一种基于TDOA重构的蜂窝网定位服务NLOS误差消除方法(英文)[J].电波科学学报,2003,18(3):311-316. 被引量：22
  • 5Lee W C Y. Mobile communication engineering. New York : Mc Graw- Hall, 1993:477-484.
  • 6Greenstein L J, Erceg V, Yeh Y S, et al. A new path-gain/delayspread propagation model for digital cellular channels. IEEE Trans on VT, 1997:46(2) :477-484.
  • 7段凯宇,张力军.一种在NLOS环境下提高精度的TDOA定位方法[J].南京邮电学院学报（自然科学版）,2005,25(5):15-19. 被引量：14

二级参考文献17

  • 1Y T Chan and K C Ho. A Simple and Efficient Estimator for Hyperbolic Location[J]. IEEE Trans on Signal Processing, 1994, 42(8) : 1905-1915.
  • 2M P Wylie and J Holtzman. The non-line-of-sight problem in mobile location estimation[A]. IEEE international conference on universal personal communication,1996, 827-831.
  • 3M I Silventoinen and T Rantalainen. Mobile station emergency locating in GSM [ A ]. IEEE international conference on personal communication, 1996, 232-238.
  • 4Joan Borras and Paul Hatrack. Decision theoretic framework for NLOS identification[A]. IEEE international conference on VT, 1998,2:1583-1587.
  • 5Pi-Chun Chen. A non-line-of-sight error mitigation algorithm[A]. IEEE WCNC, 1999,1-4.
  • 6H Asplund et al.. A Channel Model for Positioning[R]. COST 259 TD20, Bern, Switzerland, 1998.
  • 7Larry. J Greeenstein et al.. A New Path-Gain/Delay-Spread Propagation Model for Digital Cellular Channels[R]. IEEE Trans on VT, 1997, 46:477-484.
  • 8GREENSTEIN L J. A new path-gain/delay spread propagation model for digital cellular channel[J]. IEEE Trans on VT,1997,46(2) :177～484.
  • 9REED J, RAPPAPORT T. An overview of the challenges and progress in meeting the E-911 requirement for location Service [J].IEEE Communication Magazine, 1998,36(4) :30 ～ 37.
  • 10CAFFERY J,STUBER L. Overview of radiolocation in CDMA cellular system[J]. IEEE Communication Magazine,1998,36(4) :38 ～45.

共引文献32

同被引文献32

  • 1段凯宇,张力军.一种在NLOS环境下提高精度的TDOA定位方法[J].南京邮电学院学报（自然科学版）,2005,25(5):15-19. 被引量：14
  • 23GPP TS 36. 305 V10.3. O, 3rd generation partnership project; tech- nical specification group radio access network; evolved universal ter- restrial radio access network; stage 2 functional specification of user equipment positioning in E-UTRAN [ S]. 2011.
  • 3CHAN Y T, HO K C, A simple and efficient estimator for hyperbolic loeation[Jl. IEEE Trans on Signal Processing, 1994,42(8): 1905-1915.
  • 4KIM J I, LEE J G, PARK C J. A mitigation of line-of-sight by TDOA er- ror mc~ieling in wireless communication system [ C ]//Proc of International Conference on Control, Automation and Systems. 200~:1601-1605.
  • 5GUAN Wei-guo, DENG Zhong-liang, GE Yue-tao,et al. A practical TDOA positioning method for CDMA2000 mobile network [ C ]//Proc of IEEE International Conference on Wireless Communications, Net- working and Information Security. 2010:126-129.
  • 6GENG Jian, ZHANG Ling-hua. A time-difference-of-re'rival location method based on residual sorting and weigh!ed matrix amended [ C ]// Proc of IEEE International Conference on Wireless Communications and Signal Processing. 2011 : 1-5.
  • 7GREENSTEIN L J, ERCEG V, YEH Y S, et al. A new path-gain/ delay-spread propagation model for digital cellular channels [ J ]. IEEE Trans on Vehicular Technoloav. 1997. 46(2) :477484.
  • 8REED ~, RAPPAPORT T. An overview of the chaltenges and pro- gress in meeting the E-911 requirement for location service[ J]. IEEE Communication Magazine,1998,36(4) :30-37.
  • 9Chan Y T,Ho K C.A simple and efficient estimator for hyperbolic location[J].IEEE Trans on Signal Processing,1994,42(8):1905-1915.
  • 10Geng Jian,Zhang Linghua.A time-difference-of-arrival location method based on residual sorting and weighted matrix amended[C]//Proc of IEEE International Conference on Wireless Communications and Signal Processing(WCSP),2011:1-5.

引证文献3

二级引证文献7

科学技术与工程
2009年 第17期

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