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《Science of Surveying and Mapping》 2015-06
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Study on detection of GPS clock jump using median absolute deviation

WU Jing;Teaching and Research Section,Guangdong Industry Technical College;  
GPS clock jump is one of the common data anomalies in GNSS satellite clock data processing.Aiming at the problem that massive clock error data could cause poor gross error detection and affect the user pointing accuracy,this paper studied the gross error detection method using median absolute deviation.This method was extended based on the analysis of clock data characteristic,it could not only detect the gross error in satellite clock error data,but also detected the clock jump of satellite.Experimental results showed that this method performed well for the detection of gross error and clock jump.
【CateGory Index】: P228.4
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