To ensure high accuracy results from an integrated GPS/INS system, the carrier phase observables have to be used to update the filter's states. As a prerequisite the integer ambiguities must be resolved before using carrier phase measurements. However, a cycle slip that remains undetected will significantly degrade the filter's performance. In this paper, an algorithm that can effectively detect and identify any type of cycle slip is presented. The algorithm uses additional information provided by the INS, and applies a statistical technique known as the cumulative-sum (CUSUM) test. In this approach, cycle slip decision values can be computed from the INS-predicted position, and the CUSUM test used to detect cycle slips. Test results are presented to demonstrate the effectiveness of the proposed algorithm.


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    Title :

    Effective cycle slip detection and identification for high precision GPS/INS integrated systems


    Contributors:
    Lee, Hung-Kyu (author) / Wang, Jinling (author) / Rizos, C. (author)

    Published in:

    The Journal of Navigation ; 56 , 3 ; 475-486


    Publication date :

    2003


    Size :

    12 Seiten, 19 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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