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Global Navigation Satellite System:Technology Innovation and Application (CPGPS 2009 PAPERBACK)

Beijing,China,8.8-8.9,2009

ISBN: 978-1-935068-03-7 Scientific Research Publishing, USA

Paperback 444pp Pub. Date: November 2009

Category: Engineering

Price: $60

Title: Improved TurboEdit Algorithm for Un-Differenced Phase Data Preprocessing
Source: Global Navigation Satellite System:Technology Innovation and Application (CPGPS 2009 PAPERBACK) (pp 94-98)
Author(s): Yubin Yuan, Chinese Academy of Surveying and Mapping, Beijing 100039
Yamin Dang, Geomatics College, Shandong University of Science and Technology, Qingdao 266510
Yingyan Cheng, Chinese Academy of Surveying and Mapping, Beijing 100039
Abstract: Three improvements of TurboEdit algorithm are made in this paper. In the improved algorithm, the calculating of wide-line ambiguity and its variance takes into account different arc sections, the length of arc section and gross errors; Both combination observations determine whether the current epoch is a gross error or cycle slip by analyzing three successive epochs; A new fitting model based on sliding window is put forward, and the model is more suitable for the fact that Geometry-Free combination observations constitute a smooth time series; The secondary processing of divided G-F arc sections further rejects gross error. Experimental results show that the new algorithm can detect and fix cycle slips of equal-distance, equal-cycle or continuing happened conditions. The new algorithm can also reject successfully successive gross errors and those gross errors with less obvious performance.
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