Paper Info
Title
A Triple Checked Partial Ambiguity Resolution for GPS/BDS RTK Positioning.
Abstract
Reliable and accurate carrier phase ambiguity resolution is the key to high-precision Global Navigation Satellite System (GNSS) positioning and application. With the fast development of modern GNSS, the increased number of satellites and ambiguities makes it hard to fix all ambiguities completely and correctly. The partial ambiguity fixing technique, which selects a suitable subset of high-dimensional ambiguities to fix, is beneficial for improving the fixed success rate and reliability of ambiguity resolution. In this contribution, the bootstrapping success rate, bounded fixed-failure ratio test, and the new defined baseline precision defect are used for the selection of the ambiguity subset. Then a model and data dual-driven partial ambiguity resolution method is proposed with the above three checks imposed on it, which is named the Triple Checked Partial Ambiguity Resolution (TC-PAR). The comprehensive performance of TC-PAR compared to the full-fixed LAMBDA method is also analyzed based on several criteria including the fixed rate, the fixed success rate and correct fixed rate of ambiguity as well as the precision defect and RMS of the baseline solution. The results show that TC-PAR could significantly improve the fixed success rate of ambiguity, and it has a comparable baseline precision to the LAMBDA method, both of which are at centimeter level after ambiguities are fixed.
Year
DOI
Venue
2019
10.3390/s19225034
SENSORS
Keywords
DocType
Volume
partial ambiguity resolution,bootstrapping success rate,bounded fixed-failure ratio test,baseline precision defect,GPS/BDS RTK positioning
Journal
19
Issue
ISSN
Citations 
22.0
1424-8220
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Liguo Lu100.68
Liye Ma200.68
Wanke Liu373.70
Tangting Wu400.68
Benfu Chen500.34