GNSS satellite clock error real-time estimation quality control method
A quality control method and technology of satellite clock difference, applied in satellite radio beacon positioning system, measurement device, radio wave measurement system, etc., can solve the problems of residual error editing, failure, and high quality requirements of observation data
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[0079] The present invention starts from the observation value level of GNSS satellite real-time clock difference estimation, solves the problem of data quality control in real-time calculation, and includes two aspects: the first step is to preprocess the original observation data before parameter estimation, including Gross error elimination and cycle slip detection; the second step is to analyze and process the gross errors and cycle slips that were not detected in the previous step based on the residuals of the post-test observations after the filtered observations are updated.
[0080] 1) Data preprocessing
[0081] Data preprocessing is an important part of the quality control of real-time clock difference calculation, especially for the real-time clock difference estimation system, the quality of data preprocessing will directly affect the efficiency and accuracy of real-time solution, improper preprocessing may even cause processing System crashes. The real-time clock...
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