An Algorithm of Single-Epoch Integer Ambiguity Resolution for Reference Stations of BDS Triple-Frequency Network RTK

摘要

An algorithm of single-epoch integer ambiguity resolution for reference stations of BDS triple-frequency network RTK is proposed in this paper. The mathematic models, resolution process, and result analyses are given in detail. The main idea of this method is to resolve extra-wide-lane and wide-lane ambiguity by using the method of TCAR, determine the ambiguity candidates by linear relation between triple-frequencies ambiguities, and finally, determine the ambiguities depending on residual of nondispersive error. This algorithm was tested, and the advantages of this method are rapid and stable. The double difference integer ambiguity between long-scale BDS reference stations can be fixed at single epoch.