Chang Rong, Lü Shan-wei. A Geometrical Position Location Method Suitable for NLOS Environment[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2212-2216. doi: 10.3724/SP.J.1146.2006.00183
Citation:
Chang Rong, Lü Shan-wei. A Geometrical Position Location Method Suitable for NLOS Environment[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2212-2216. doi: 10.3724/SP.J.1146.2006.00183
Chang Rong, Lü Shan-wei. A Geometrical Position Location Method Suitable for NLOS Environment[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2212-2216. doi: 10.3724/SP.J.1146.2006.00183
Citation:
Chang Rong, Lü Shan-wei. A Geometrical Position Location Method Suitable for NLOS Environment[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2212-2216. doi: 10.3724/SP.J.1146.2006.00183
Based on the positive bias property of the Time-Of-Arrival(TOA)measurement error caused by Non- Line-Of-Sight(NLOS)propagation in the mobile communication environment, a simple geometrical position location method is presented. Some sites are determined according to the coordinates of the base-stations and TOAs, and the location estimation of mobile station is achieved by averaging the coordinates of these sites. The simulation results show that this method can effectively improve the location accuracy in NLOS environment with little degeneration to mobile location in LOS environment.
Rappaport T S,Reed J H, and Woerner B D. Position location using wireless communications on highways of the future[J].IEEE Commun. Mag.1996, 34 (10):33-41[2]Wylie M P and Holtzmann J. The non-line-of-sight problem in mobile location estimation[A][C][J].5th IEEE Int. Conf. on Universal Personal Communications,Cambridge,USA,29 Sep.- 2 Oct.1996,vol.2:827-831[3]Ertel R B and Reed J H. Angle and time of arrival statistics for circular and elliptical scattering models[J].IEEE Journal on Selected Areas in Communications.1999,17 (11):1829-[4]He Yan, Hu Han-Ying, and Zhou Shan. A TOA based believable factor mobile location algorithm[A][C]. 2004 IEEE Wireless Communications and Networking Conference,Atlanta,USA,21-25 March 2004,Vol.1: 260-263.[5]Liu Ying and Wang Shu-xun. TOA estimation method using fourth order cumulants[A][C]. 2000 5th International Conference on Signal Processing Proceedings,Beijing,China,21-25 Aug., 2000,vol.1: 210-214.[6]Winter J and Wengerter C. High resolution estimation of the time of arrival for GSM location[A][C]. 2000 IEEE 51st Vehicular Technology Conference Proceedings,Tokyo,Japan,15-18 May., 2000,vol.2: 1343-1347.[7]Greenstein L J, et al.. A new path-gain/delay spread propagation model for digital cellular channels[J].IEEE Trans. on Vehicular Technology.1997,46(2):477-484[8]Chan Y T and Ho K C. A simple and efficient estimator for hyperbolic location[J].IEEE Trans. on Signal Processing.1994,42(8):1905-1915[9]田孝华,廖桂生. 一种有效减小非视距传播影响的TOA定位方法[J]. 电子学报,2003,31(9): 1429-1432. Tian Xiao-hua and Liao Gui-sheng. An effective TOA based location method for mitigating the influence of the NLOS propagation[J]. Acta Electronica Sinica, 2003, 31 (9): 1429- 1432.