Publication Date:
2022-02-04
Description:
To solve the problem that integer ambiguity between middle-range reference stations in BDS is difficult to be fixed correctly due to the influence of ionospheric delay error and tropospheric delay error, an algorithm of triple-frequency integer ambiguity resolution between middle-range BDS reference stations was proposed. Firstly, the frequency observations of B2 and B3 were used to determine B2-B3 extra-wide-lane integer ambiguity. Then, B1-B3 wide-lane integer ambiguity was solved by using the closer characteristic of ionospheric delay error between B2-B3 extra-wide-lane and B1-B3 wide-lane combination observation, and B1-B2 wide-lane integer ambiguity can be fixed according to the linear relationship of triple-frequency integer ambiguity. Furthermore, B1-B3 and B1-B2 ionosphere-free combination observation and the decomposable characteristic of the corresponding integer ambiguity were used to estimate narrow-lane integer ambiguity and relative zenith tropospheric delay error, and then narrow-lane integer ambiguity can be finally fixed by search mode. This algorithm is tested by the measured triple-frequency data of BDS CORS network. The results show that triple-frequency carrier phase integer ambiguity between middle-range BDS reference stations can be fixed accurately and effectively with the method. © 2021, Editorial Board of Journal of CUMT. All right reserved. Search Sources Lists SciVal ALBERT Telegrafenberg Holdings (Opens new window) Alerts Document details - The algorithm of triple-frequency integer ambiguity resolution between middle-range BDS reference stations Back to results Previous 3of20 Next SFX Get it!(opens in a new window)|Entitled full text| Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and TechnologyVolume 50, Issue 2, Pages 396 - 403March 2021 Document type Article Source type Journal ISSN 10001964 The algorithm of triple-frequency integer ambiguity resolution between middle-range BDS reference stations[BDS中距离参考站三频整周模糊度确定方法] a , a, a, b, a To solve the problem that integer ambiguity between middle-range reference stations in BDS is difficult to be fixed correctly due to the influence of ionospheric delay error and tropospheric delay error, an algorithm of triple-frequency integer ambiguity resolution between middle-range BDS reference stations was proposed. Firstly, the frequency observations of B2 and B3 were used to determine B2-B3 extra-wide-lane integer ambiguity. Then, B1-B3 wide-lane integer ambiguity was solved by using the closer characteristic of ionospheric delay error between B2-B3 extra-wide-lane and B1-B3 wide-lane combination observation, and B1-B2 wide-lane integer ambiguity can be fixed according to the linear relationship of triple-frequency integer ambiguity. Furthermore, B1-B3 and B1-B2 ionosphere-free combination observation and the decomposable characteristic of the corresponding integer ambiguity were used to estimate narrow-lane integer ambiguity and relative zenith tropospheric delay error, and then narrow-lane integer ambiguity can be finally fixed by search mode. This algorithm is tested by the measured triple-frequency data of BDS CORS network. The results show that triple-frequency carrier phase integer ambiguity between middle-range BDS reference stations can be fixed accurately and effectively with the method. © 2021, Editorial Board of Journal of CUMT. All right reserved.
Type:
info:eu-repo/semantics/article
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