AN UNBIASED WEIGHTING METHOD FOR DATA IN GPS COMMON VIEW

Zhuang Qixiang, Jian Shuguang, Fan Neng

Abstract: The mode parameters for GPS common view time transfer is estimated and an unbiased weighting method (UBWA) for data in GPS common view is discussed in this paper, The one 5 jitter of each time series is determined by the standard deviation of residuals of polynomial regression, which define weights used to compute a weighted average. Averaging the double difference observables during an integral length (30 days), the systematic biases existing between every two time series are corrected in constant monthly relative to a reference time series. The GPS common view data among NRC in Ottawa, NBS in Boulder and USNO in Washington DC, are calculated by using three different methods: UBIWA, equal weights average method (EWA), and direct weighting method (DWA).
Published in: Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting
November 28 - 30, 1989
Sheraton Hotel
Redondo Beach, California
Pages: 519 - 526
Cite this article: Qixiang, Zhuang, Shuguang, Jian, Neng, Fan, "AN UNBIASED WEIGHTING METHOD FOR DATA IN GPS COMMON VIEW," Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting, Redondo Beach, California, November 1989, pp. 519-526.
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