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Method and system for monitoring space reference deviation of satellite navigation system

A technology of satellite navigation system and reference deviation, applied in the field of satellite navigation, can solve the problems of inconvenient application and low monitoring accuracy, and achieve the effect of improving convenience and accuracy

Active Publication Date: 2021-06-11
中国人民解放军61540部队
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for monitoring the space reference deviation of the satellite navigation system, directly monitor the space reference deviation of the satellite navigation system through broadcast ephemeris parameters and precise ephemeris data, thereby solving the problem that the traditional monitoring method has low monitoring accuracy, The problem of inconvenient application

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  • Method and system for monitoring space reference deviation of satellite navigation system

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Embodiment 1

[0044] see figure 1 A method for monitoring the spatial reference deviation of a satellite navigation system provided by an embodiment of the present invention specifically includes the following steps:

[0045] Step 101: Obtain broadcast ephemeris parameters and precise ephemeris data of the satellite navigation system;

[0046] Wherein, the precise ephemeris data specifically refers to satellite centroid position data of a space constellation including multiple satellite navigation systems obtained under the same space reference condition. For example, the Multi GNSS Experiments (Multi GNSS Experiments) project (MGEX) in the International Satellite Navigation System (GNSS) Service (IGS) and its analysis center provide the same space reference multi-satellite navigation system precision ephemeris data or global Continuous monitoring and assessment system (iGMAS, International GNSS Monitoring and Assessment System) and the precise ephemeris data of the multi-satellite navigat...

Embodiment 2

[0069] see figure 2 This embodiment provides a system for monitoring the spatial reference deviation of the satellite navigation system using the method provided in Embodiment 1. The system for monitoring the spatial reference deviation of the satellite navigation system includes the following units:

[0070] The data acquisition unit is used to acquire broadcast ephemeris parameters and precise ephemeris data of the satellite navigation system;

[0071] A satellite centroid position vector calculation unit, configured to calculate a satellite centroid position vector according to the broadcast ephemeris parameters;

[0072] The space reference deviation parameter calculation unit of the broadcast ephemeris and the precise ephemeris is used to calculate the distance between the broadcast ephemeris and the precise ephemeris according to the satellite centroid position vector obtained from the broadcast ephemeris and the satellite centroid position vector given by the precise e...

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Abstract

The invention relates to a method and a system for monitoring space reference deviation of a satellite navigation system, relates to the technical field of satellite navigation, and aims to solve the problems that a traditional method for monitoring space reference deviation parameters of the satellite navigation system needs positioning calculation, is inconvenient to apply and is low in precision. The method for monitoring the space reference deviation of the satellite navigation system comprises the following steps: acquiring broadcast ephemeris parameters and precise ephemeris data of the satellite navigation system; calculating a satellite centroid position vector according to the broadcast ephemeris parameters; calculating a space reference deviation parameter of a broadcast ephemeris and a precision ephemeris according to the satellite centroid position vector given by the satellite centroid position vector and the precision ephemeris data; and calculating a space reference deviation parameter between the two satellite navigation systems according to the space reference deviation parameters of the broadcast ephemeris and the precise ephemeris. The method for monitoring the space reference deviation of the satellite navigation system is used for monitoring the space reference deviation of the satellite navigation system conveniently and accurately.

Description

technical field [0001] The invention belongs to the field of satellite navigation, in particular to a method and system for monitoring the space reference deviation of a satellite navigation system. Background technique [0002] Satellite Navigation System (GNSS) has become the most important positioning and timing service infrastructure. At present, the main satellite navigation systems mainly include the satellite navigation system (GPS) of the United States, the satellite navigation system (GLONASS) of Russia, the satellite navigation system (GALILEO) of the European Union, and the satellite navigation system (BDS) of China. Users use different satellite navigation systems to locate and obtain coordinates in different coordinate systems. For example, GPS positioning obtains coordinates in WGS84 coordinate system; GLONASS positioning obtains coordinates in PZ-90 coordinate system; GALILEO positioning The obtained coordinates are in the GTRF coordinate system; the coordina...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/20G01S19/27
CPCG01S19/20G01S19/27
Inventor 阮仁桂贾小林冯来平毛悦宋小勇王龙张奋宗文鹏
Owner 中国人民解放军61540部队