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Method for detecting orbital maneuver of Beidou satellite in real time based on phase observation value

A Beidou satellite and real-time detection technology, applied in satellite radio beacon positioning system, measurement device, radio wave measurement system, etc., can solve problems such as difficult real-time operation, complicated working mode, poor accuracy, etc., and achieve high accuracy and method Simple and reliable, reducing the effect of common error

Pending Publication Date: 2020-06-19
NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection method of orbital maneuver has many deficiencies such as low precision, poor precision, difficult real-time operation or complex working methods.

Method used

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  • Method for detecting orbital maneuver of Beidou satellite in real time based on phase observation value
  • Method for detecting orbital maneuver of Beidou satellite in real time based on phase observation value
  • Method for detecting orbital maneuver of Beidou satellite in real time based on phase observation value

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Embodiment 1

[0039] Embodiment 1: a method for real-time detection of Beidou satellite orbital maneuvers based on phase observations, comprising the following steps:

[0040] Step 1. Data acquisition;

[0041] Collect the dual-frequency observations of Beidou satellites on the station and the auxiliary data required for Beidou data processing. The auxiliary data include Beidou satellite broadcast ephemeris, antenna phase center and earth rotation parameters;

[0042] Step 2, data preprocessing;

[0043] According to the Beidou satellite broadcast ephemeris obtained in step 1, perform data quality inspection and gross error elimination on the dual-frequency observations of Beidou satellites, delete data without Beidou satellite ephemeris and incomplete observations, and obtain clean data;

[0044] Step three, error correction;

[0045] Carry out relativity, tide, antenna phase center, troposphere and earth rotation error corrections to the clean data obtained in step two;

[0046] Step 4...

Embodiment 2

[0063] Embodiment 2: a method for real-time detection of Beidou satellite orbital maneuvers based on phase observations, comprising the following steps:

[0064] Step 1. Data acquisition;

[0065] Collect the dual-frequency observations of Beidou satellites on the station and the auxiliary data required for Beidou data processing. The auxiliary data include Beidou satellite broadcast ephemeris, antenna phase center and earth rotation parameters; the dual-frequency observations of Beidou satellites include dual-frequency pseudo-range observations Values ​​and dual-frequency carrier phase observations can effectively reduce the impact of external environmental factors on the dual-frequency phase observations of Beidou satellites, and improve the data quality of dual-frequency phase observations of Beidou satellites;

[0066] Step 2, data preprocessing;

[0067] According to the Beidou satellite broadcast ephemeris obtained in step 1, the coordinates of the reference station are...

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Abstract

The invention discloses a method for detecting orbital maneuver of a Beidou satellite in real time based on a phase observation value. The method comprises eight steps of data acquisition, data preprocessing, error correction, equation establishment, parameter calculation, empirical threshold calculation, orbital maneuver judgment and maneuver satellite number judgment. According to the invention,epoch difference is directly carried out on an original phase observation value; an inter-epoch differential observation model is formed; the influence of partial common errors can be eliminated; theerror correction level is improved, meanwhile, an integer ambiguity parameter is eliminated; real-time estimation is carried out on the three-dimensional speed and the clock difference epoch change parameter; the three-dimensional speed and the corresponding parameter estimation information of an observation station can be directly obtained; the accuracy of orbital maneuver detection is improved,meanwhile, real-time operation is facilitated; orbital maneuver can be efficiently detected; the influence of satellite maneuver on precise orbit determination is reduced; the available observation time of a user side satellite is prolonged; and the method has an important value for improving precise navigation positioning time service.

Description

technical field [0001] The invention relates to the technical field of real-time detection of satellite orbit maneuvers, in particular to a method for real-time detection of Beidou satellite orbit maneuvers based on phase observation values. Background technique [0002] The Beidou satellite navigation constellation consists of three constellations: geostationary orbit, inclined earth orbit and medium circular orbit. Under the gravitational effect of stars such as the sun and the moon, the orbit of the satellite will change. Therefore, in order to ensure that the satellite operates on the designed orbit, it is necessary to adjust the orbit through orbital maneuvering. Especially for satellites in geostationary orbit, orbit maneuvers are more frequent. At present, the detection methods of orbital maneuvers have many shortcomings such as low precision, poor accuracy, difficult real-time operation or complicated working methods. [0003] How to improve the accuracy of orbita...

Claims

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Application Information

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IPC IPC(8): G01S19/08
CPCG01S19/08
Inventor 涂锐卢晓春张睿韩军强王星星范丽红张鹏飞刘金海洪菊
Owner NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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