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Broadcast ephemeris data consistency detection method, device and system

A technology for broadcasting ephemeris and detection method, applied in the field of satellite navigation, can solve the problem that the ephemeris consistency detection method is not suitable for satellite navigation systems, etc., and achieve the effects of accurate consistency detection results, reasonable values, and accurate error tolerance ranges.

Active Publication Date: 2015-09-30
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP +1
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Problems solved by technology

[0005] The present invention provides a consistency detection method, equipment and system for broadcast ephemeris data to solve the problem that the ephemeris consistency detection method in the prior art is not applicable to satellite navigation systems with many different types of satellites

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  • Broadcast ephemeris data consistency detection method, device and system
  • Broadcast ephemeris data consistency detection method, device and system
  • Broadcast ephemeris data consistency detection method, device and system

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[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] The embodiment of the present invention provides a method for detecting the consistency of broadcast ephemeris data, which is applied to a ground-based augmentation system of a satellite navigation system, especially to a ground-based augmentation system of a Beidou satellite navigation system. Beidou satellite navigation system is a satellite navigation...

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Abstract

The invention provides a broadcast ephemeris data consistency detection method, device and system, belonging to the technical field of satellite navigation. The method comprises: obtaining ephemeris error thresholds of different satellites; according to the ephemeris error thresholds, detecting at least one piece of obtained broadcast ephemeris data of the different satellites and producing a detection result. The detection result is used to indicate whether the at least one piece of broadcast ephemeris data is available. According to the invention, in view of the fact that satellite navigation systems have various different satellites, the ephemeris error thresholds of the satellites are calculated respectively and are combined to conduct broadcast ephemeris data consistency detection for different satellites, making the error tolerance range more precise and therefore making the broadcast ephemeris data consistency detection result more precise.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a method, device and system for consistency detection of broadcast ephemeris data. Background technique [0002] The ground-based augmentation system is proposed by ICAO to meet the high requirements of civil aviation precision approach and landing guidance in terms of accuracy, integrity and availability. It improves the accuracy of satellite navigation through differential positioning, and adds a series of integrity Monitoring algorithms improve system integrity, availability, and continuity metrics. [0003] In the ground-based augmentation system, a series of integrity algorithms are a powerful guarantee for system integrity, availability, and continuity. The data quality monitoring, that is, the consistency detection of satellite broadcast ephemeris, is the key link of the integrity algorithm. The satellite broadcast ephemeris includes satellite orbit parameter...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/27
CPCG01S19/27
Inventor 程松郑金华杨明胡耀坤梁绍一高虎
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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