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Method for fixing narrow lane ambiguity of Beidou ground based augmentation system base station

A ground-based augmentation system and narrow-lane ambiguity technology, which is applied in satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve the problem of quickly and accurately determining the narrow-lane ambiguity of the Beidou baseline and obtaining high-precision Positioning results and other issues

Active Publication Date: 2016-06-22
WUHAN UNIV
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Problems solved by technology

At present, it is difficult to quickly and accurately determine the narrow lane ambiguity of the Beidou baseline, so it is difficult to obtain high-precision positioning results

Method used

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  • Method for fixing narrow lane ambiguity of Beidou ground based augmentation system base station
  • Method for fixing narrow lane ambiguity of Beidou ground based augmentation system base station
  • Method for fixing narrow lane ambiguity of Beidou ground based augmentation system base station

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Embodiment Construction

[0051] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only for illustration and explanation of the present invention, and are not intended to limit this invention.

[0052] The present invention provides a method for quickly fixing the narrow-lane ambiguity of the reference station of the Beidou ground-based augmentation system, which uses Beidou three-frequency observations, and successively fixes the ultra-wide lane and wide-lane ambiguity, and establishes a narrow-lane ambiguity multi-path error model, According to the repeatability of the orbital cycle of navigation satellites, the multipath error model is corrected for the current sky-narrow-lane ambiguity sequence to quickly fix the narrow-lane ambiguity.

[00...

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Abstract

The invention discloses a method for fixing narrow lane ambiguity of the Beidou ground based augmentation system base station. According to the method, Beidou tri-frequency observed quantity is employed; fixing ambiguity of ultra-wide lane and wide lane in succession; establishing a narrow lane ambiguity multi-path error model; according to the repeatability of navigational satellite orbital period, performing multi-path error model correction to the narrow lane ambiguity sequence of the day to quickly fixing the narrow lane ambiguity, and to quickly obtain high-precision positioning results at centimeter-level.

Description

technical field [0001] The invention belongs to the technical field of baseline calculation between Beidou CORS network reference stations, and in particular relates to a method for establishing a multipath error model and accelerating ambiguity fixation between baselines by using Beidou tri-frequency observations and the repeatability of satellite orbit cycles. Background technique [0002] Compared with traditional RTK technology, network RTK technology has more advantages in cost and efficiency, so many CORS stations have been built all over the world for engineering and scientific research. With the development of the Beidou satellite navigation system, its role in navigation and positioning is increasing, and the multi-system network RTK has better reliability and stability than a single system. Therefore, it is of high engineering and scientific significance to study the relative positioning of Beidou medium and long baselines to establish GPS+GLONASS+BDS multi-system ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/44
CPCG01S19/44
Inventor 叶世榕陈德忠袁兵谢兰天王剑英
Owner WUHAN UNIV
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