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A New Position Location System Using DTV Transmitter Identification Watermark Signals


A new position location technique using the transmitter identification (TxID) RF watermark in the digital TV (DTV) signals is proposed in this paper. Conventional global positioning system (GPS) usually does not work well inside buildings due to the high frequency and weak field strength of the signal. In contrast to the GPS, the DTV signals are received from transmitters at relatively short distance, while the broadcast transmitters operate at levels up to the megawatts effective radiated power (ERP). Also the RF frequency of the DTV signal is much lower than the GPS, which makes it easier for the signal to penetrate buildings and other objects. The proposed position location system based on DTV TxID signal is presented in this paper. Practical receiver implementation issues including nonideal correlation and synchronization are analyzed and discussed. Performance of the proposed technique is evaluated through Monte Carlo simulations and compared with other existing position location systems. Possible ways to improve the accuracy of the new position location system is discussed.


  1. Kaplan ED: Understanding GPS: Principles and Applications. Artech House, Norwood, Mass, USA; 1996.

    Google Scholar 

  2. European Transport Policy for 2010: Time to Decide, European Commission, 2001

  3. FCC Docket No. 94–102 : Revision of the Commission's Rules to Ensure Compatibility with Enhanced 911 Emergency Calling System. RM-8143, July 1996. (E-911)

  4. Caffery JJ Jr., Stuber GL: Subscriber location in CDMA cellular networks. IEEE Transactions on Vehicular Technology 1998, 47(2):406–416. 10.1109/25.669079

    Article  Google Scholar 

  5. Caffery JJ Jr., Stuber GL: Overview of radiolocation in CDMA cellular systems. IEEE Communications Magazine 1998, 36(4):38–45. Cellular Networks, Radiolocation Techniques 10.1109/35.667411

    Article  Google Scholar 

  6. Prasithsangaree P, Krishnamurthy P, Chrysanthis PK: On indoor position location with wireless LANs. The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '02), September 2002, Lisbon, Portugal 2: 720–724.

    Article  Google Scholar 

  7. Rabinowitz M, Spilker JJ Jr.: A new positioning system using television synchronization signals. IEEE Transactions on Broadcasting 2005, 51(1):51–61. 10.1109/TBC.2004.837876

    Article  Google Scholar 

  8. ATSC, ATSC Standard A/110: Synchronization Standard for Distributed Transmission, July 2004

  9. Wang X, Wu Y, Caron B: Transmitter identification using embedded pseudo random sequences. IEEE Transactions on Broadcasting 2004, 50(3):244–252. 10.1109/TBC.2004.834027

    Article  Google Scholar 

  10. Ziemer RE, Peterson RL: Digital Communications and Spread Spectrum Systems. Macmillan, New York, NY, USA; 1985.

    Google Scholar 

  11. Sarwate DV, Pursley MB: Cross correlation properties of pseudorandom and related sequences. Proceedings of the IEEE 1980, 68(5):593–619.

    Article  Google Scholar 

  12. Hashemi H: The indoor radio propagation channel. Proceedings of the IEEE 1993, 81(7):943–968. 10.1109/5.231342

    Article  Google Scholar 

  13. Molkdar D: Review on radio propagation into and within buildings. IEE Proceedings H: Microwaves, Antennas and Propagation 1991, 138(1):61–73. 10.1049/ip-h-2.1991.0011

    Google Scholar 

  14. Mattsson A: Single frequency networks in DTV. IEEE Transactions on Broadcasting 2005, 51(4):413–422. 10.1109/TBC.2005.858419

    Article  Google Scholar 

  15. Grewal MS, Weill LR, Andrews AP: Global Positioning Systems, Inertial Navigation, and Integration. John Wiley & Sons, New York, NY, USA; 2001.

    Google Scholar 

  16. Farrell JA, Barth M: The Global Positioning System & Inertial Navigation. McGraw-Hill, New York, NY, USA; 1999.

    Google Scholar 

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Correspondence to Xianbin Wang.

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

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Wang, X., Wu, Y. & Chouinard, JY. A New Position Location System Using DTV Transmitter Identification Watermark Signals. EURASIP J. Adv. Signal Process. 2006, 042737 (2006).

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