Non-line-of-sight error mitigating algorithm based on scattering models via multi-antenna system

doi:1005-8885 (2008) 01-0018-05

Acta Metallurgica Sinica(English letters) ›› 2008, Vol. 15 ›› Issue (1): 18-22.doi: 1005-8885 (2008) 01-0018-05

• Wireless • Previous Articles Next Articles

Non-line-of-sight error mitigating algorithm based on scattering models via multi-antenna system

Key Laboratory of Universal Wireless Communications (Beijing University of Posts and Telecommunications), Ministry of Education, Wireless Technology Innovation Institute (WTI), Beijing 100876, China

Received:2007-03-05 Revised:1900-01-01 Online:2008-03-31
Contact: Zhu Xiaoxuan

Abstract

Abstract:

In urban environment with serious blocking of direct paths, the non-line-of-sight (NLOS) propagation influences the location estimation accuracy. In this article, a novel algorithm is developed, which can mitigate the NLOS errors in location estimation significantly. Utilizing multiantenna array, the information of scatterers that cause the NLOS propagation is obtained. Then, we combine the information with TOA/TDOA based location algorithm to estimate the location of mobile station (MS). The simulation results show that our method can mitigate NLOS errors and enhance the location accuracy greatly.

Key words:

multi-antenna;location algorithm;NLOS;time of arrival (TOA)

CLC Number:

TN915.01

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Non-line-of-sight error mitigating algorithm based on scattering models via multi-antenna system

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