Wwights Decision for a WLS Estimator Mitigating NLOS Effects in Wireless Positioning Systems 


Vol. 27,  No. 12, pp. 1175-1180, Dec.  2002


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  Abstract

The NLOS(Non Line Of Sight} propagation, derived from blocking of direct path between a mobile station and a base station, always manifests a remarkable bias when a time parameter is estimated in time-based positioning system. In this paper, we propose a new WLS(Weighted Least Square) method using the weight matrix designed to mitigate the NLOS effects. The weight matrix is derived from the measured delay spread which is inversely proportional to NLOS error. Numerical experiments show that the proposed method has a robust performance in the overall environments.

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  Cite this article

[IEEE Style]

Y. Jeong, D. H. Youn, C. Lee, "Wwights Decision for a WLS Estimator Mitigating NLOS Effects in Wireless Positioning Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 12, pp. 1175-1180, 2002. DOI: .

[ACM Style]

Yangseok Jeong, Dae Hee Youn, and Chungyong Lee. 2002. Wwights Decision for a WLS Estimator Mitigating NLOS Effects in Wireless Positioning Systems. The Journal of Korean Institute of Communications and Information Sciences, 27, 12, (2002), 1175-1180. DOI: .

[KICS Style]

Yangseok Jeong, Dae Hee Youn, Chungyong Lee, "Wwights Decision for a WLS Estimator Mitigating NLOS Effects in Wireless Positioning Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 12, pp. 1175-1180, 12. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880