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A New Method for Calibration of NLOS Error in Positioning Systems
Yangseok JEONG Heungryeol YOU Dae-Hee YOUN Chungyong LEE
IEICE TRANSACTIONS on Communications
Publication Date: 2002/05/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
NLOS error, position location, positioning system,
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In positioning systems NLOS (Non-Line of Sight) errors always cause remarkable positive bias and directly increase range measurement errors. In this paper, a new method is proposed to calibrate NLOS errors in positioning systems by using the relationship between mean excess delay and delay spread measured at a mobile station. The computer simulations showed that the proposed calibration technique effectively reduces the positioning error caused by urban NLOS environment.