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      Instantaneous Real-Time Kinematic Decimeter-Level Positioning with BeiDou Triple-Frequency Signals over Medium Baselines

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          Abstract

          Many applications, such as marine navigation, land vehicles location, etc., require real time precise positioning under medium or long baseline conditions. In this contribution, we develop a model of real-time kinematic decimeter-level positioning with BeiDou Navigation Satellite System (BDS) triple-frequency signals over medium distances. The ambiguities of two extra-wide-lane (EWL) combinations are fixed first, and then a wide lane (WL) combination is reformed based on the two EWL combinations for positioning. Theoretical analysis and empirical analysis is given of the ambiguity fixing rate and the positioning accuracy of the presented method. The results indicate that the ambiguity fixing rate can be up to more than 98% when using BDS medium baseline observations, which is much higher than that of dual-frequency Hatch-Melbourne-Wübbena (HMW) method. As for positioning accuracy, decimeter level accuracy can be achieved with this method, which is comparable to that of carrier-smoothed code differential positioning method. Signal interruption simulation experiment indicates that the proposed method can realize fast high-precision positioning whereas the carrier-smoothed code differential positioning method needs several hundreds of seconds for obtaining high precision results. We can conclude that a relatively high accuracy and high fixing rate can be achieved for triple-frequency WL method with single-epoch observations, displaying significant advantage comparing to traditional carrier-smoothed code differential positioning method.

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          Most cited references39

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          Precise point positioning for the efficient and robust analysis of GPS data from large networks

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            Carrier phase ambiguity resolution for the Global Positioning System applied to geodetic baselines up to 2000 km

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              Resolution of GPS carrier-phase ambiguities in Precise Point Positioning (PPP) with daily observations

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                Author and article information

                Contributors
                Role: Academic Editor
                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                22 December 2015
                January 2016
                : 16
                : 1
                : 1
                Affiliations
                [1 ]School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China; hexiyang704814@ 123456126.com (X.H.); wkliu@ 123456sgg.whu.edu.cn (W.L.)
                [2 ]Collaborative Innovation Center for Geospatial Technology, 129 Luoyu Road, Wuhan 430079, China
                Author notes
                [* ]Correspondences: xhzhang@ 123456sgg.whu.edu.cn (X.Z.); ltang@ 123456whu.edu.cn (L.T.); Tel.: +86-27-6875-8512 (X.Z.); +86-27-6539-0307 (L.T.); Fax: +86-27-6877-8371 (X.Z.); +86-27-8786-3830 (L.T.)
                Article
                sensors-16-00001
                10.3390/s16010001
                4732034
                26703614
                3c92cc6a-f941-404a-a10e-e98ff425e16a
                © 2015 by the authors; licensee MDPI, Basel, Switzerland.

                This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 24 October 2015
                : 17 December 2015
                Categories
                Article

                Biomedical engineering
                beidou,triple frequency,carrier-smoothed code (csc),extra-wide-lane,wide-lane,ambiguity resolution,differential positioning

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