A Method for Estimating BeiDou Inter-frequency Satellite Clock Bias

doi:10.11947/j.AGCS.2016.20150226

Abstract

Abstract: A new method for estimating the BeiDou inter-frequency satellite clock bias is proposed, considering the shortage of the current methods. The constant and variable parts of the inter-frequency satellite clock bias are considered in the new method. The data from 10 observation stations are processed to validate the new method. The characterizations of the BeiDou inter-frequency satellite clock bias are also analyzed using the computed results. The results of the BeiDou inter-frequency satellite clock bias indicate that it is stable in the short term. The estimated BeiDou inter-frequency satellite clock bias results are molded. The model results show that the 10 parameters of model for each satellite can express the BeiDou inter-frequency satellite clock bias well and the accuracy reaches cm level. When the model parameters of the first day are used to compute the BeiDou inter-frequency satellite clock bias of the second day, the accuracy also reaches cm level. Based on the stability and modeling, a strategy for the BeiDou satellite clock service is presented to provide the reference of our BeiDou.

Key words: triple-frequency signals, precise point positioning, inter-frequency clock bias, BeiDou Navigation Satellite System

CLC Number:

P228

LI Haojun, LI Bofeng, WANG Jiexian, XU Tianhe. A Method for Estimating BeiDou Inter-frequency Satellite Clock Bias[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(2): 140-146.

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