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《Science of Surveying and Mapping》 2010-05
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New approach of vehicle-borne GPS azimuth based on virtual measurement

YANG Wen-hai①,YE Ze-tian②(①Key Laboratory of 3D Information Acquisition and Application,Ministry of Education,Capital Normal University,Beijing 100048,China;②Chinese Academy of surveying & Mapping,Beijing 100039,China)  
How to improve the precision of azimuth based on GPS is a new research focus.This paper presented a new approach to generate Vehicle' Azimuth,using Multi-GPS Data of constant length of baseline.A filter model was presented corresponding to characteristic of GPS signals and current statistical model.Moreover,Azimuth noise could be filtered by Kalman filter algorithm based on this model,which corresponded to Virtual Measurement calculated by Baseline restriction.The experimental results showed that azimuth precision could be improved greatly.
【Fund】: 国家“863”高技术研究发展计划资助项目(2006AA12Z324)
【CateGory Index】: P228.4
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