Method and system for resolving signal in space error

A space signal error and calculation technology, applied in the field of satellite navigation, can solve the problem of no channel technology introduction

Active Publication Date: 2010-06-09
GUANGZHOU SPACEFLIGHT HAITE SYST ENG
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  • Abstract
  • Description
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Problems solved by technology

Some foreign institutions have calculated similar parameters, but they have not publicly stated. The technical methods used by them have implemented a confidentiality policy against our country, and there is no channel to obtain technology introduction.

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  • Method and system for resolving signal in space error
  • Method and system for resolving signal in space error

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Embodiment Construction

[0048] In the following detailed description, reference is made to the accompanying drawings which form a part hereof. In the drawings, the same reference numerals denote the same elements. The illustrative embodiments described in the description and illustrated in the drawings are not intended to limit the invention. Various changes may be made to the described embodiments without departing from the spirit and scope of the subject matter presented here. It will be readily understood that the various aspects of the invention described herein and illustrated in the accompanying drawings may be permuted, substituted, combined, divided and omissions, all of which are within the scope of the invention.

[0049] The present invention relates to the resolution of Signal-in-Space Error (SISE). The invention performs real-time processing on orbit, clock difference and other data, adopts the Overbound mathematical principle to integrate various error factors into the final result o...

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Abstract

The invention relates to resolving for a signal in space error (SISE). An SISE estimation value for reflecting a synthetic error of the signal in space in real time is acquired by processing data such as track and clock correction and the like in real time and integrating multiple error factors into an SISE final result by adopting the Overbound mathematical principle. The invention also relates to precision analysis of intermediate data and result data in SISE resolving. Besides, the invention also relates to verification for the signal in space error. By applying SISE at different moments to a positioning calculation and comparing the positioning calculation result with a known precise result in a positioning domain, if the positioning accuracy modified by the SISE is obviously higher than the positioning accuracy before being modified, the calculation for SISE parameters is true and valid.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a method and a system for calculating a satellite navigation integrity parameter—Signal in Space Error (SISE, Signal in Space Error). [0002] The invention can be used in a satellite navigation augmentation system, so that such a system can monitor the integrity of the satellite navigation constellation satellites, which is beneficial to the improvement of the functions of the satellite navigation augmentation system, and provides value-added services for users related to "life safety". Background technique [0003] With the rapid development of satellite navigation systems, the applications of satellite navigation systems such as GPS, Galileo, GLONASS, and Beidou are also increasingly popular, which has promoted the upgrading of navigation technology in aviation, railway, fishery, highway, agriculture and other fields. In addition, ground systems such as wide-area augmentati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/20
Inventor 孟波张雪辉申志强李强曹昱高伟
Owner GUANGZHOU SPACEFLIGHT HAITE SYST ENG
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