Bootstrapping Added Partial Search Strategy for GNSS Integer Ambiguity Resolution

Ze Min Wu; Shao Feng Bian; Dong Fang Jiang; Cai Bing Xiang

doi:10.4028/www.scientific.net/AMR.1065-1069.2255

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Bootstrapping Added Partial Search Strategy for GNSS Integer Ambiguity Resolution
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1065-1069Bootstrapping Added Partial Search Strategy for...

Bootstrapping Added Partial Search Strategy for GNSS Integer Ambiguity Resolution

Abstract:

Integer least square estimator is known to be optimal in GNSS ambiguity resolution. But it relays on a search in the whole ambiguity space which decreases the computational efficiency. A partial search strategy is proposed in this contribution. The new search is limited in an ambiguity space subset defined by the bootstrapping solution; the search-and-shrink approach is also introduced. Two experiments have shown the new search strategy promotes the computational efficiency a lot without a notable fixing property lost.