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浙江大学学报(工学版)
浙江大学学报(工学版)
自动化技术、电信工程     
基于稀疏故障假设的鲁棒定位方法
张鑫, 崔晓伟, 冯振明
清华大学 电子工程系,北京 100084
Robust positioning technique based on sparse assumption
ZHANG Xin, CUI Xiao wei, FENG Zhen ming
Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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摘要：
为了使接收机在多个故障伪距存在时能够提供鲁棒的定位结果,提出基于稀疏假设的故障检测与排除算法.该方法利用定位解算残差与伪距误差之间的映射关系,通过对故障观测量的个数进行稀疏约束,使用稀疏算法直接求解所有观测量的伪距误差.利用伪距误差计算结果修正初始的定位结果,实现鲁棒定位.在不同的可见卫星数和不同的故障卫星数下进行仿真.仿真结果表明,当可见卫星数量较多时,使用该算法能够对多个故障观测量进行有效的检测,提升定位结果的准确性. 
Abstract:
A new fault detection and elimination algorithm based on sparse assumption was proposed in order to obtain robust positioning results when multiple blunders exist in pseudo ranges. The algorithm can calculate the error for each range measurement under the sparse constraint on the number of blunders by applying the projection from range error to the residuals. The calculated errors were used to modify the primary positioning result, and the robust positioning result was obtained. Simulations were performed in various numbers of visible satellites as well as blunders. Results show the effectiveness of the proposed method to detect multiple blunders and the ability to improve the positioning accuracy when there are enough visible satellites.
出版日期: 2015-10-29
:  TN 967  
基金资助:

国家自然科学基金联合基金重点资助项目(U1333203)； 中科院精密导航定位与定时技术重点实验室开放基金资助项目(2012PNTT12).
通讯作者: 崔晓伟，男，副教授，博导.ORCID: 0000 0003 0545 7408.     E-mail: cxw2005@tsinghua.edu.cn
作者简介: 张鑫（1987—）,男,博士生,从事卫星导航的研究. ORCID: 0000 0002 4196 8793. E-mail: zhangxin08.bj@gmail.com
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引用本文:

张鑫, 崔晓伟, 冯振明. 基于稀疏故障假设的鲁棒定位方法[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008 973X.2015.10.014.

ZHANG Xin, CUI Xiao wei, FENG Zhen ming. Robust positioning technique based on sparse assumption. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008 973X.2015.10.014.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008 973X.2015.10.014    或    http://www.zjujournals.com/eng/CN/Y2015/V49/I10/1924

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