Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

Measurements of the effects of multipath interference on timing accuracy in a cellular radio positioning system

Measurements of the effects of multipath interference on timing accuracy in a cellular radio positioning system

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Radar, Sonar & Navigation — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

© The Institution of Engineering and Technology
Published

The authors present a quasi-interferometric technique for measuring the flight times of signals broadcast by global system for mobile communication (GSM) transmitters, together with measurements made using the technique in and around Cambridge, UK. The data are used to determine the errors associated with GSM signal arrival times in various environments. The majority of the timing errors in all signal environments lie in the range −1 to +1.5 µs, with the tails of the distributions extending beyond ±3 µs. The authors show that these large timing errors are caused by the distortions of the cross-correlation peaks used to determine the signal arrival times as a result of coherent multipath interference. Models of timing errors, based on Cauchian distributions, fit the experimental data better than those based on symmetrical or skewed Gaussian functions. This has implications for attempts to combine GSM and global navigation satellite system measurements using Kalman filters.

Inspec keywords: interferometry; radio transmitters; radionavigation; cellular radio; mobile communication; interference (signal)

Other keywords: coherent multipath interference; mobile communication transmitter; quasiinterferometric technique; GSM signal; Cauchian distribution; signal flight time; cross-correlation peaks; mobile communication radio positioning system

Subjects: Mobile radio systems; Electromagnetic compatibility and interference

References

    1. 1)
      • Drane, C., Duffett-Smith, P.J., Hern, S., Brice, J.P.: `Mobile positioning using E-OTD without LMUs', Proc., SPIE's 17th Annual Int. Symp. Aerospace/Defence Sensing, Simulation and Controls, AeroSense 2003, 2003.
    2. 2)
    3. 3)
      • Location Based Services. GSM Association Permanent Reference Document SE 2.3, version 3.1.0:52, 2003.
    4. 4)
      • Irsigler, H.: `Eissfeller multipath performance analysis for future GNSS signals', Proc. National Technical Meeting of the Satellite Division of the Institute of Navigation, ION NTM, 26–28 January 2004, San Diego, California.
    5. 5)
      • Rowe, R., Jarvis, M.R., Hern, S.D., Duffett-Smith, P.J., Pratt, A.R.: `Fully-autonomous fine time aiding to a GPS receiver in a cellular telephone', Proc. 20th ITM ION Meeting, GNSS 2007, 25–28 September 2007, Fortworth.
    6. 6)
      • Solanki, P.: `Techniques used for location-based services: a survey', 2005, Master's, University of Essex, Huosheng, H..
    7. 7)
      • GSM Specification: ‘Radio access network: radio transmission and reception’. GSM 3GPP 05.05 version 8.12.0 Release, 1999.
    8. 8)
      • Duffett-Smith, P.J., Brice, J.P.: `Positioning systems and methods', US, Number 6,937,866, 30, August 2005.
    9. 9)
      • Joyce, R.M., Ibbetson, L.J., Lopes, L.B.: `Prediction of GSM performance using measured propagation data. Mobile technology for the human race', IEEE 46th Vehicular Technology Conf., 28 April–1 May 1996, 1, p. 326–330.
    10. 10)
      • Winter, J., Wengerter, C.: `High resolution estimation of the time of arrival for GSM location', Proc. IEEE 51st Vehicular Technology Conf. 2000, VTC 2000, Spring, 2000, Tokyo, 2, p. 1343–1347.
    11. 11)
      • Lee, C., Yoo, S., Yoon, S., Kim, S.Y.: `A novel multipath mitigation scheme based on slope differential of correlator output for Galileo systems', Eighth Int. Conf. Advanced Communication Technology 2006 (ICACT 2006), 20–22 February 2006, 2, p. 4–1363.
    12. 12)
      • Cannon, M.E., Lachapelle, G., Qiu, W., Frodge, S.L., Remondi, B.: `Performance analysis of a narrow correlator spacing receiver for precise static GPS positioning', IEEE Position Location and Navigation Symp., 11–15 April 1994, p. 355–360.
    13. 13)
      • Pratt, A.R., Faragher, R.M., Duffett-Smith, P.J.: `Fine time aiding and pseudo-synchronisation of GSM networks', Proc. ION NTM 2006 Meeting, 18–20 January 2006, Monterey.
    14. 14)
    15. 15)
      • Kurth, D.: `Range-only robot localization and SLAM with Radio', CMU-RI-TR-04-29, Technical, 2004.
    16. 16)
      • GSM Specification: ‘Digital cellular telecommunications system (phase 2+); location services (LCS); (functional description) – Stage 2’ GSM 3GPP 03.71 version 8.0.0 Release, 1999.
    17. 17)
      • B. Ristic , S. Arulampalam , N. Gordon . (2004) Beyond the Kalman filter: particle filters for tracking applications.
    18. 18)
      • Faragher, R.M.: `The effects of multipath interference on radio positioning systems', 2007, , University of Cambridge.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-rsn.2009.0287
Loading

Related content

content/journals/10.1049/iet-rsn.2009.0287
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address