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http://dx.doi.org/10.5139/JKSAS.2006.34.5.074

A study on improving LSAST ambiguity resolution for CDGPS  

Lee, Gi-Hun (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.34, no.5, 2006 , pp. 74-80 More about this Journal
Abstract
GPS, which has been opened to the public since the 1980's, uses the C/A code time of arrival to estimate the position, and measures the carrier doppler frequency to estimate the velocity. In development from the 1990's, DGPS has improved position accuracy by eliminating common errors and CDGPS has achieved cm-level position accuracy using carrier phase. In this paper, a modified LSAST ambiguity resolution method for CDGPS is proposed to improve reliability and computational efficiency. Also the test results of cm level relative positioning of a moving vehicle using single frequency GPS receivers are compared to INS position. This research result can be widely used for the development of high precision INS, unmanned autonomous driving, survey and mapping, etc.
Keywords
GPS; CDGPS; INS; LSAST; Ambiguity resolution;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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