Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to main content
EURASIP Journal on Wireless Communications and Networking
Download PDF
  • Research Article
  • Open access
  • Published:

Efficient Delay Tracking Methods with Sidelobes Cancellation for BOC-Modulated Signals

EURASIP Journal on Wireless Communications and Networking volume 2007, Article number: 072626 (2007) Cite this article

Abstract

In positioning applications, where the line of sight (LOS) is needed with high accuracy, the accurate delay estimation is an important task. The new satellite-based positioning systems, such as Galileo and modernized GPS, will use a new modulation type, that is, the binary offset carrier (BOC) modulation. This type of modulation creates multiple peaks (ambiguities) in the envelope of the correlation function, and thus triggers new challenges in the delay-frequency acquisition and tracking stages. Moreover, the properties of BOC-modulated signals are yet not well studied in the context of fading multipath channels. In this paper, sidelobe cancellation techniques are applied with various tracking structures in order to remove or diminish the side peaks, while keeping a sharp and narrow main lobe, thus allowing a better tracking. Five sidelobe cancellation methods (SCM) are proposed and studied: SCM with interference cancellation (IC), SCM with narrow correlator, SCM with high-resolution correlator (HRC), SCM with differential correlation (DC), and SCM with threshold. Compared to other delay tracking methods, the proposed SCM approaches have the advantage that they can be applied to any sine or cosine BOC-modulated signal. We analyze the performances of various tracking techniques in the presence of fading multipath channels and we compare them with other methods existing in the literature. The SCM approaches bring improvement also in scenarios with closely-spaced paths, which are the most problematic from the accurate positioning point of view.

[1234567891011121314151617181920212223242526]

References

  1. Betz J, Goldstein D: Candidate designs for an additional civil signal in GPS spectral bands. MITRE, Bedford, Mass, USA; 2002.http://www.mitre.org/work/tech_papers/tech_papers_02/betz_candidate/

    Google Scholar 

  2. Barker B, Betz J, Clark J, et al.: Overview of the GPS M code signal. CDROM Proceedings of the ION National Meeting; Navigating into the New Millennium, January 2000, Anaheim, Calif, USA

    Google Scholar 

  3. GJU : Galileo Open Service—Signal in Space Interface Control Document (OS SIS ICD). 2006.http://www.galileoju.com/ Galileo Joint Undertalikng (GJU),

    Google Scholar 

  4. Lohan ES, Lakhzouri A, Renfors M: Feedforward delay estimators in adverse multipath propagation for Galileo and modernized GPS signals. EURASIP Journal on Applied Signal Processing 2006, 2006: 19 pages.

    Google Scholar 

  5. Betz J: The offset carrier modulation for GPS modernization. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '99), January 1999, San Diego, Calif, USA 639-648.

    Google Scholar 

  6. Betz J: Design and performance of code tracking for the GPS M code signal. MITRE, Mclean, Va, USA; 2000.http://www.mitre.org/work/tech_papers/tech_papers_00/betz_codetracking/

    Google Scholar 

  7. Holmes J, Raghavan S, Lazar S: Acquisition and tracking performance of NRZ and square wave modulated symbols for use in GPS. Proceedings of the 54th Annual Meeting of the Institue of Navigation, June 1998, Denver, Colo, USA 611-625.

    Google Scholar 

  8. Dierendonck AV, Fenton P, Ford T: Theory and performance of narrow correlator spacing in a GPS receiver. Journal of the Institute of Navigation 1992,39(3):265-283.

    Article  Google Scholar 

  9. Irsigler M, Eissfeller B: Comparison of multipath mitigation techniques with consideration of future signal structures. Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS/GNSS '03), September 2003, Portland, Ore, USA 2584-2592.

    Google Scholar 

  10. McGraw A, Braasch M: GNSS multipath mitigation using high resolution correlator concepts. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '99), January 1999, San Diego, Calif, USA 333-342.

    Google Scholar 

  11. Garin L, Rousseau J-M: Enhanced strobe correlator multipath rejection for code and carrier. Proceedings of the 10th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION-GPS '97), September 1997, Kansas City, Mo, USA 1: 559-568.

    Google Scholar 

  12. Jones J, Fenton P, Smith B: Theory and performance of the pulse aperture correlator. NovAtel, Calgary, Alberta, Canada; 2004.http://www.novatel.com/Documents/Papers/PAC.pdf

    Google Scholar 

  13. Dierendonck AV, Braasch M: Evaluation of GNSS receiver correlation processing techniques for multipath and noise mitigation. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '97), January 1997, Santa Monica, Calif, USA 207-215.

    Google Scholar 

  14. Lee C, Yoo S, Yoon S, Kim SY: A novel multipath mitigation scheme based on slope differential of correlator output for Galileo systems. Proceedings of the 8th International Conference on Advanced Communication Technology (ICACT '06), February 2006, Phoenix Park, Korea 2: 1360-1363.

    Google Scholar 

  15. van Nee R, Siereveld J, Fenton P, Townsend B: The multipath estimating delay lock loop: approaching theoretical accuracy limits. Proceedings of IEEE Position Location and Navigation Symposium, April 1994, Las Vegas, Nev, USA 246-251.

    Google Scholar 

  16. Bello PA, Fante RL: Code tracking performance for novel unambiguous M-code time discriminators. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '05), January 2005, San Diego, Calif, USA 293-298.

    Google Scholar 

  17. Fine P, Wilson W: Tracking algorithms for GPS offset carrier signals. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '99), January 1999, San Diego, Calif, USA

    Google Scholar 

  18. Lin V, Dafesh P, Wu A, Cahn C: Study of the impact of false lock points in subcarrier modulated ranging signals and recommended mitigation approaches. Proceedings of the 59th ION Annual Meeting & CIGTF Guidance Test Symposium, June 2003, Albuquerque, NM, USA 156-165.

    Google Scholar 

  19. Ward P: A design technique to remove the correlation ambiguity in binary offset carrier (BOC) spread spectrum signals. Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM '04), January 2004, San Diego, Calif, USA 886-896.

    Google Scholar 

  20. Julien O, Macabiau C, Cannon M, Lachapelle G: BOC signal acquisition and tracking method and apparatus.US Patent Application Publication 2005/0270997 A1, December 2005.

    Google Scholar 

  21. Heiries V, Avila-Rodriguez J-A, Irsigler M, Hein G, Rebeyrol E, Roviras D: Acquisition performance analysis of composite signals for the L1 OS optimized signal. Proceedings of the 18th International Technical Meeting of the Satellite Division of the Institue of Navigation (ION-GNSS '05), September 2005, Long Beach, Calif, USA 877-889.

    Google Scholar 

  22. Schmid A, Neubauer A: Differential correlation for Galileo/GPS receivers. Proceedings IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '05), March 2005, Philadelphia, Pa, USA 3: 953 -956.

    Google Scholar 

  23. Burian A, Lohan ES, Renfors M: Sidelobe cancellation method for unambiguous tracking of binary-offset-carrier modulated signals. CDROM Proceedings of the 3rd ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC '06), December 2006, Noordwijk, The Netherlands

    Google Scholar 

  24. Hein G, Godet J, Issler J-L, Martin JC, Pratt T, Lucas R: Status of Galileo frequency and signal design. CDROM Proceedings of the International Technical Meeting of the Satellite Division of the Institute of Navigation (ION-GPS '02), September 2002, Portland, Ore, USA

    Google Scholar 

  25. Lohan ES, Lakhzouri A, Renfors M: Binary-offset-carrier modulation techniques with applications in satellite navigation systems. Wireless Communications and Mobile Computing 2006,7(6):767-779.

    Article  Google Scholar 

  26. Rebeyrol E, Macabiau C, Lestarquit L, et al.: BOC power spectrum densities. CDROM Proceedings of the National Technical Meeting of Institute of Navigation (ION-NTM '05), January 2005, San Diego, Calif, USA

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Communications Engineering, Tampere University of Technology, P.O. Box 553, Tampere, 33101, Finland

    Adina Burian, Elena Simona Lohan & Markku Kalevi Renfors

Authors
  1. Adina Burian
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Elena Simona Lohan
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Markku Kalevi Renfors
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Adina Burian.

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reprints and permissions

About this article

Cite this article

Burian, A., Lohan, E.S. & Renfors, M.K. Efficient Delay Tracking Methods with Sidelobes Cancellation for BOC-Modulated Signals. J Wireless Com Network 2007, 072626 (2007). https://doi.org/10.1155/2007/72626

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1155/2007/72626

Keywords