Journal of Computer Applications ›› 2011, Vol. 31 ›› Issue (08): 2289-2292.DOI: 10.3724/SP.J.1087.2011.02289

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Innovation extrapolation method for GPS/SINS tightly coupled system

Guo-rong HUANG,Xing-zhao PENG,Chuang GUO,Hong-bing CHENG   

  1. Institute of Engineering, Air Force Engineering University, Xi'an Shaanxi 710038, China
  • Received:2011-01-07 Revised:2011-03-07 Online:2011-08-01 Published:2011-08-01
  • Contact: Xing-zhao PENG

基于GPS/SINS紧耦合系统的新息外推法

黄国荣,彭兴钊,郭创,程洪炳   

  1. 空军工程大学 工程学院,西安710038
  • 通讯作者: 彭兴钊
  • 作者简介:黄国荣(1972-),男,陕西华县人,副教授,博士,主要研究方向:惯性导航、组合导航;彭兴钊(1987-),男,河南封丘人,硕士研究生,主要研究方向:惯性导航、组合导航、GPS完好性监测;郭创(1978-),男,湖南益阳人,讲师,博士,主要研究方向:惯性导航、组合导航;程洪炳(1984-),男,江西鄱阳人,博士研究生,主要研究方向:检测技术、自动化装置。
  • 基金资助:

    航空科学基金资助项目(20100818017)

Abstract: Integrity is a critical parameter for Global Positioning System (GPS)/ Strapdown Inertial Navigation System (SINS) tight coupling system. In order to reduce satellites' failure detection time, an innovation extrapolation method based on the innovation test method was proposed. By disposing the innovation produced in the extrapolation process, the innovation extrapolation method's test statistics that has been used for failure detection was formed. Applying the proposed method in GPS/SINS tightly coupled system, the simulation results show that innovation extrapolation method can detect slowly growing failure faster than the innovation test method, and innovation extrapolation method can undermine the effect of outliers for failure detection.

Key words: tight coupling, integrity, failure detection, innovation extrapolation method

摘要: 在GPS/SINS紧耦合系统中,完好性是一个极其重要的指标。为缩短卫星故障检测时间,在新息检测法的基础上提出一种新息外推法,该算法通过对外推过程中产生的新息进行处理,形成检验统计量来检测卫星故障。结合GPS/SINS紧耦合系统,仿真结果表明,新息外推法比新息检测法能更快地检测慢变故障,且能在一定程度上削弱野值对故障检测的影响。

关键词: 紧耦合, 完好性, 故障检测, 新息外推法

CLC Number: