A New Method for Mitigating the Effect of NLOS Propagation in the TOA and AOA Hybrid Location System

Tian Xiao-hua; Liao Gui-sheng

Volume 25 Issue 12

Dec. 2003

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Article Navigation > Journal of Electronics & Information Technology > 2003 > 25(12): 1664-1668

Tian Xiao-hua, Liao Gui-sheng. A New Method for Mitigating the Effect of NLOS Propagation in the TOA and AOA Hybrid Location System[J]. Journal of Electronics & Information Technology, 2003, 25(12): 1664-1668.

Citation:

Tian Xiao-hua, Liao Gui-sheng. A New Method for Mitigating the Effect of NLOS Propagation in the TOA and AOA Hybrid Location System[J]. Journal of Electronics & Information Technology, 2003, 25(12): 1664-1668.

Citation:

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A New Method for Mitigating the Effect of NLOS Propagation in the TOA and AOA Hybrid Location System

Received Date: 2002-07-11
Rev Recd Date: 2002-11-18
Publish Date: 2003-12-19

Abstract

Abstract

Based on the relationship between the errors of the Circular Lines of Position (LOPs) and the straight LOPs and that of the measured parameters, a hybrid locating system in which the Time Of Arrival (TOA) and the Angle Of Arrival (AOA) measured by the closest Base Station (BS) are combined is presented to mitigate the effect of Non-Line-Of-Sight (NLOS) propagation in this paper. In order to reduce the feasible region of the Mobile Station (MS) and to improve the accuracy of the location estimation, the restrictions that TOA estimates are always greater than the true TOA values and the angle spreads are always smaller than the maximum angle spread determined by the Geometrically Based Single Bounce Circular Model (GBSBCM) are used. Its effectiveness is verified by the simulation.

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References(1)

References

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