Ionospheric Cycle Slip Processing in Triple-frequency GNSS

doi:10.11947/j.AGCS.2015.20140348

Abstract

Abstract: A new method based on three linear independence geometry-free and ionosphere-free (GIF) combinations to detect and repair cycle-slip is advanced to finishing the cycle slip processing under the higher ionospheric activity. In order to ensure that the cycle slip correction is accurate, the repair value is validated by a second-order, time-difference phase ionospheric residual (STPIR) combination. And then, this method is validated and analyzed by using the triple-frequency data with higher ionospheric error. The experiment results show that this method can nearly detect and repair all the cycle slip except several insensitive cycle slip under high ionospheric activity. So this method can be used to cycle slip procession in triple-frequency precise point position and other un-differenced dynamic navigation and position.

Key words: high ionospheric activity, triple-frequency GNSS, cycle-slip detection and repair, geometry-free and ionosphere-free combination, second-order, time-difference phase ionospheric residual combination

CLC Number:

P228.4

HUANG Lingyong, ZHAI Guojun, OUYANG Yongzhong, XU Guangxiu, LI Kaifeng, HUANG Xianyuan, FAN Long. Ionospheric Cycle Slip Processing in Triple-frequency GNSS[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(7): 717-725.

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