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Journal of Projectiles, Rockets, Missiles and Guidance >

2015 , Vol. 35 >Issue 2: 145 - 149

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.02.037

CORRELATION TECHNOLOGY

Research on RAIM Algorithm for Dual-frequency BD/GPS Compatible Receiver

  • YANG Lin ,
  • WU Dewei ,
  • QI Junyi ,
  • LU Hu
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  • Information and Navigation College, Air Force Engineering University, Xi'an 710077, China

Received date: 2014-04-29

  Online published: 2025-05-26

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Abstract

RAIM algorithm which has the advantages of independence and quick alarm is widely used in aviation. Since traditional RAIM algorithm has high detection and recognition rate only when fault satellite appears bulky pseudorange deviation, it is difficult to meet the demand of high precision flight safety. In order to improve the integrity, through improving satellite space configuration and the precision of distance measurement, a combination constellation double-frequency RAIM algorithm put forward. It has established the BDS/GPS dualfrequency pseudorange observation model, considering satellite dual-frequency signal pseudorange observation noise correlation and deviation between different frequency point diffusion phenomenon, to inherit the parity vector method for fault detection and recognition, the sensitivity of the algorithm for small pseudorange deviation. The graphic and numeral simulation results demonstrate that the method is effective and feasible.

Key words： RAIM; multi-constellation; dual frequency observation; fault detection and isolation

Cite this article

YANG Lin , WU Dewei , QI Junyi , LU Hu . Research on RAIM Algorithm for Dual-frequency BD/GPS Compatible Receiver[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2015 , 35(2) : 145 -149 . DOI: 10.15892/j.cnki.djzdxb.2015.02.037

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