Planar Search Algorithm for GPS Ambiguity Resolution with Short Baseline Length Constraint

doi:10.3780/j.issn.1000-758X.2012.03.007

›› 2012, Vol. 32 ›› Issue (3): 43-48.doi: 10.3780/j.issn.1000-758X.2012.03.007

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Planar Search Algorithm for GPS Ambiguity Resolution with Short Baseline Length Constraint

PANG Chun-Lei, ZHAO Xiu-Bin, LU Yan-E, YAN Yu-Guo, YU Yong-Lin

(College of Telecommunication Engineering, Air Force Engineering University, Xi′an 710077)

Received:2011-08-30 Revised:2012-06-25 Published:2012-06-25 Online:2012-06-25

Abstract

Abstract: A new planar search method for GPS ambiguity resolution with short baseline length constraints was proposed. The integer ambiguity was fixed in the condition of least square error by searching the baseline elevation and azimuth angle. The model was established, the search principle and application process of the new algorithm were discussed, and the step of extensive search and intensive search was induced. Through the experiments and comparing with LAMBDA algorithm, the new method with simple algorithm and high efficiency was proved. The error is no more than 1cm in baseline precision, no more than 0.6° in elevation precision and no more than 0.4° in azimuth precision. This method is also adaptive to attitude measurement.

Key words: Short baseline confinement, Two dimensional searching, Integer ambiguity, Attitude measurement, Spacecraft

PANG Chun-Lei, ZHAO Xiu-Bin, LU Yan-E, YAN Yu-Guo, YU Yong-Lin. Planar Search Algorithm for GPS Ambiguity Resolution with Short Baseline Length Constraint[J]. , 2012, 32(3): 43-48.

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Planar Search Algorithm for GPS Ambiguity Resolution with Short Baseline Length Constraint

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