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Journal of applied research and technology
versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423
J. appl. res. technol vol.12 no.6 Ciudad de México dic. 2014
Simulation and Implementation of an Integrated TDOA/AOA Monitoring System for Preventing Broadcast Interference
Yao-Tang Chang
Department of Information Technology, Kao Yuan University, Kaohsiung, Taiwan 82151. t10066@cc.kyu.edu.tw
Abstract
The rapid development of wireless broadband communication technology has degraded the location accuracy performance of radio monitoring stations worldwide that use signal angle of arrival (AOA) location technology, and the stations in Taiwan are no exception. In this study, a Federal Communications Commission F(50, 50) broadcast propagation prediction methodology was applied to determine the coverage area of installed TDOA-based monitoring stations in Tainan (i.e., southern Taiwan) metropolitan area. The simulation results indicated that 3 TDOA-based location stations are required to achieve a coverage diameter of 20~30 km. Subsequently, 3 TDOA-based radio monitoring stations [Luzhu, Tainan Gaote, and Tainan health stations (Jinkang)] were installed to locate the radio transmitter that was the source of broadcast interference in Taiwan by monitoring the frequency modulation of broadcast stations at 88.3, 91.5, 89.1, and 91.9 MHz in the Tainan metropolitan, rural, and urban areas, respectively. In this study, the proposed integrated TDOA/AOA location technology was implemented in Taiwan for the first time according to International Telecommunications Union requirements. The location accuracy was within 950 m (50% circular error probability) under multipath conditions in the metropolitan area.
Keywords: Angle of arrival (AOA), time difference of arrival (TDOA), radio spectrum monitoring system (RSMS), International Telecommunications Union Recommendation (ITU-R), Federal Communications Commission (FCC).
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Aknowledgments
This study was supported under grant No. NSC 102-2221-E-244-001 by the National Science Council and by the Special Interference Prevention project of the National Communications Commission in Taiwan. Also, we are thankful for National Instruments (NI) and Telecom technology center (TTC) in Taiwan providing essential measured equipment and technical consultant, respectively.
References
[1] FCC "Revision of the Commission's Rules to Ensure Compatibility with Enhanced 911 Emergency Calling Systems," 1999. [ Links ]
[2] Yao-Tang Chang, "Simulation and Implementation of TDOA Monitoring System for Broadcasting Interferences," Progress In Electromagnetics Research Symposium 2013 (PIERS 2013) post presentation, Stockholm, Sweden, 2013, pp. 364-368. [ Links ]
[3] Yao-Tang Chang and Yi-Chang Lin, "Implementation and Experiments of TDOA Monitoring Techniques for Broadcasting Interferences," Applied Mechanics and Materials (international conference ASPEC 2013), Vols. 479-480, 2013, pp. 996-1000. [ Links ]
[4] Richard Klukas and Michel Fattouche, (1998), "Line-of-sight Angle of Arrival Estimation in the Outdoor Multipath Environment," IEEE transactions on vehicular technology, 47(1). [ Links ]
[5] ITU-R Spectrum Monitoring Handbook, 2011. [ Links ]
[6] Y.C Liang, A. R. Leyman and B. H Soong., (1997), "Multipath Time Delay Estimation Using Higher Order Statistics" Higher-Order Statistics," Proceedings of the IEEE Signal Processing. [ Links ]
[7] Nikias, C. L and R. Pan, (1991), "Time Delay Estimation in Unknown Gaussian Spatially Estimation for Large BT Signals," IEEE Transactions on Signal Processing, 39(4). [ Links ]
[8] Li Cong and Weihua Zhuang Li Cong, (2002), "Hybrid TDOA/AOA Mobile User Location for Wideband CDMA Cellular Systems," IEEE Transactions on Wireless Communications, 1(3). [ Links ]
[9] H. C. Schau and A. Z. robinson, (1986), "Passive Source Localization Employing Intersecting Spherical Surfaces from Time-of-arrival Differences," IEEE Trans. Acoust., Speech, Signal Processing, 34, 1011-1013. [ Links ]
[10] Xu, J., Ma and Law, C.L. (2008), "Position Estimation Using Ultra Wideband Time Difference of Arrival Measurements," IET Sci. Meas. Technol, 2 (1). 53-58. [ Links ]
[11] Bohanudin, S., Ismail, M. and Hussain, H. (2010), "Simulation Model and Location Accuracy for Observed Time Difference of Arrival (OTDOA) Positioning Technique in Third Generation System," IEEE, Research and Development (SCORED), 13-14. [ Links ]
[12] Y. T. Chang, C. L. Wu, and H.C. Cheng. (2014)" The Enhanced Locating Performance of an Integrated Cross-Correlation and Genetic Algorithm for Radio Monitoring Systems," Sensor, 14, 7541-7562. [ Links ]
[13] Qineti Q, ARUP and TRL, "Ofcom AMS Final Report," 2006. [ Links ]
[14] Y. W Lee, J. Kim and W. Chung. "Position Location Error Analysis by AOA and TDOA Using a Common Channel Model for CDMA Cellular Environments," Vehicular Technology Conference Proceedings. VTC 2000-Spring Tokyo. 2000 IEEE 51st. [ Links ]
[15] D. Munoz-Rodriguez, L. Suarez-Robles, C. Vargas-Rosales and J. R. Rodriguez-Cruz, (2011), "Maximum Likelihood Position Location with a Limited Number of References," Journal of Applied Research and Technology, 9(1), 5-18. [ Links ]
[16] F. Tsai, Y. S. Chiou and H. Chang, (2013), "A Positioning Scheme Combining Location Tracking with Vision Assisting for Wireless Sensor Networks," Journal of Applied Research and Technology, 11(2), 292-300. [ Links ]
[17] Y. T. Chan and K. C. Ho, (2013), "GPS/INS Integration Accuracy Enhancement Using the Interacting Multiple Model Nonlinear Filters," Journal of Applied Research and Technology, 11 (4), 496-508. [ Links ]
[18] W. H. Foy, (1976), "Position-location Solutions by Taylor-series Estimation," IEEE Trans. Aerosp. Electron. Syst., 12, 187-194. [ Links ]
[19] Benesty, J, Jingdong Chen and Yiteng Huang, (2004), "Time-delay Estimation via Linear Interpolation and Cross Correlation," IEEE Transactions on speech and audio processing, 12(5). [ Links ]
[20] C. H. Knapp and G. C. Carter, (1976), "The Generalized Correlation Method for Estimation of Time Delay," IEEE Trans. Acoust., Speech, Singal Processing, 24, 320-327. [ Links ]
[21] Azaria, M. and Hertz, D. (1984), "Time Delay Estimation by Generalized Cross Correlation Methods," IEEE Transactions on Acoustics, Speech and Signal Processing, 32(2), 280-285. [ Links ]
[22] W. A. Gardner and C. K. Chen. (1992), "Signal Selective Time-Difference-of-Arrival Estimation for Passive Location of Man-Made Signal Sources in Highly Corruptive Environments Part I: Theory and Method," IEEE Transactions on Signal Processing, 40(5), 1168-1184. [ Links ]
[23] C. K. Chen and W. A. Gardner, (1992), "Signal Selective Time-Difference-of-Arrival Estimation for Passive Location of Man-Made Signal Sources in Highly Corruptive Environments, Part II: Algorithms and Performance," IEEE Transactions on Signal Processing, 40 (5), 1185-1197 . [ Links ]
[24] P. R. Roth, (1971), "Effective Measuremetns Using Digital Signal Analysis," IEEE Spectrum, 8, 62-70. [ Links ]
[25] W. R. Hahn and S. A. Tretter, (1973), "Optimum Processing for Delay-Vector Estimation in Passive Signal Analysis," IEEE Transactions on Information Theory, 19(5), 608-614. [ Links ]
[26] ITU-R Spectrum Monitoring Handbook, 1995. [ Links ]
[27] B.F. Burke, G.S. Francis. "An Introduction to Radio Astronomy", Cambridge University Press, Second Edition 2002. [ Links ]
[28] D. J. Torrieri, (1984), "Statistical Theory of Passive Location Systems," IEEE Trans. Aerosp. Electron. Syst., 20, 183-198. [ Links ]
[29] Y. T. Chan and K. C. Ho, (1994), "A Simple and Efficient Estimator for Hyperbolic Location," IEEE Trans. Signal Processing, 42, 1905-1915. [ Links ]
[30] FCC "Transmitting Antenna Height in Meters Figure 4.15-6 FCC F (50,50) propagation chart". [ Links ]