GNSS World of China

Volume 45 Issue 1
Feb.  2020
Turn off MathJax
Article Contents
LIU Xu, YAO Zheng, LYU Hongli, LU Mingquan. SIC-based anti near-far effect acquisition method for pseudolites systems[J]. GNSS World of China, 2020, 45(1): 12-18. doi: DOI:10.13442/j.gnss.1008-9268.2020.01.002
Citation: LIU Xu, YAO Zheng, LYU Hongli, LU Mingquan. SIC-based anti near-far effect acquisition method for pseudolites systems[J]. GNSS World of China, 2020, 45(1): 12-18. doi: DOI:10.13442/j.gnss.1008-9268.2020.01.002

SIC-based anti near-far effect acquisition method for pseudolites systems

doi: DOI:10.13442/j.gnss.1008-9268.2020.01.002
  • Publish Date: 2020-02-15
  • In the Ground-based Pseudolites System, near-field pseudolite signals may interfere and suppress the far-field signals since the existence of near-far effect, causing failure acquisition of the far-field signals. A SIC-based acquisition method anti near-far effect is proposed in this paper, aiming at the acquisition of time-hopping direct sequence spread spectrum (TH-DSSS) signal implemented in this system. Interferences of strong signals to weak signals are reduced by reconstructing local replica of the strong signal and interference cancellation. The proposed method is analyzed in theory and simulation. Simulation results indicate that the SIC-based acquisition method has the ability to reduce the influence of near-far effect, increase the detection probability of weak signals and enlarge the operating range of system without changing the pseudolite base station structure and the framework of corresponding receiver, which provides an effective guarantee for the receiver to capture, track and position in scenarios with strong near-far effect.

     

  • loading
  • [1]
    谢钢.GPS原理与接收机设计[M]. 北京: 电子工业出版社,2009:2-13.
    [2]
    COBB H S. GPS pseudolites: Theory, design, and applications[D]. Stanford:Stanford University, 1997.
    [3]
    王迪,陈光武,刘射德.基于伪卫星信号捕获原理的抗远近效应方法研究[J].测绘科学与仪器(英文版),2017,8(3):228-237.
    [4]
    GLENNON E P, DEMPSTER A G. A review of GPS cross correlation mitigation techniques[C]//The  International Symposium on GNSS/GPS, Fairfax: The Institute of Navigation, 2004.
    [5]
    BEHRENS R T, SCHARF L L. Signal processing applications of oblique projection operators[J]. IEEE Transactions on Signal Processing, 1994, 42(6): 1413-1424.DOI:10.1109/78.286957.
    [6]
    SCHARF L L, FRIEDLANDER B. Matched subspace detectors[J]. IEEE Transactions on signal processing, 1994, 42(8): 2146-2157.DOI:10.1109/78.301849.
    [7]
    GLENNON - P, DEMPSTER A G. A novel GPS cross correlation mitigation technique[C]//Proceedings of the 18th international technical meeting of the satellite division of the Institute of Navigation (ION GNSS 2005), 2005: 190-199.DOI:http://dx.doi.org/.
    [8]
    NUNES F D, SOUSA F M G. GNSS near-far mitigation through subspace projection without phase information[J]. IEEE Transactions on Aerospace and Electronic Systems, 2012, 48(3): 2746-2755.DOI:10.1109//TAES.2012.6237626.
    [9]
    HOLTZMAN J M. DS/CDMA successive interference cancellation[M]//GLISIC S G,LEPPANEN P A.Code Division Multiple Access Communications. Springer, Boston, MA, 1995: 161-180.DOI:10.1007/978-1-4615-2251-5_9.HOLTZMAN J M. DS/CDMA successive interference cancellation[M]//Code Division Multiple Access Communications, 1995: 161-180.DOI:10.1109/ISSSTA.1994.379614.
    [10]
    GLENNON E P, BRYANT R, DEMPSTER A ,[JP] et al. Post correlation CWI and cross correlation mitigation using delayed PIC[C]//Proceedings of the 20th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2007), 2007: 236-245.
    [11]
    YUN S J, YAO Z, WANG T F, et al. High accuracy and fast acquisition algorithm for pseudolites-based indoor positioning systems[C]//Fourth International Conference on Ubiquitous Positioning, Indoor Navigation and Location Based Services (UPINLBS), 2016: 51-60.DOI:10.1109/UPINLBS.2016.7809950.
    [12]
    CHANG C L, JUANG J C. Performance analysis of narrowband interference mitigation and near-far resistance scheme for GNSS receivers[J]. Signal Processing, 2010, 90(9): 2676-2685.DOI:10.1016/j.siqpro.2010.03.013.
    [13]
    MADHANI P H, AXELRAD P, KRUMVIEDA K, et al. Application of successive interference cancellation to the GPS pseudolite nearfar problem[J]. IEEE Transactions on Aerospace and Electronic Systems, 2003, 39(2): 481-488.DOI:10.1109/TAES.2013.1207260.
    [14]
    孙迅,吴兆年,聂裕平. 一种新的卫星导航欺骗干扰抑制方法[C]// 第九届中国卫星导航学术年会论文集,2018.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (970) PDF downloads(158) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return