Experimental Study on Protection Distance between Analog TV and Digital TV in Adjacent UHF Frequency Bands at Terrestrial Television
Keywords:
DTT, Digital TV, PAL, Field Strength, Adjacent, Channel Interference, Power Ratio, Bit Error Rate, Carrier to Noise ratioAbstract
Office of the National Broadcasting and Telecommunication Commission (NBTC), the Thai governmental organization decided to launch digital broadcasting. The implementation has to carry by the broadcasting license; the digital transmission testing has to carry on broadcasting on channel 30 while the analog television has to broadcast on channel 29. The adjacent channel interference must occur between analog television signal and digital television signal because of 20 MHz spacing between both signals.
This paper proposes the experimental study of testing in order to measure and determining the degradation caused by the analog PAL television signal interferences on the digital television signal. The previous researches have been presented since the beginning of DVB-T broadcasting at several sites by M.N. Sanchez et al. [1] and M. M. Valez et al. [2]. They carried out the laboratory tests to measure the degradation of the bit error rate (BER) caused by analog PAL TV. The variations of adjacent channel interference with regarding the distance from the base station to determine the quality of the digital signal both in town and out of town.
References
M. N. Sánchez, M. A. Acuña, I. Cuiñas, R. M. RodrÃguez-Osorio, de Haro, A. Garcia-Pino, “Co channel and adjacent channel interference in actual terrestrial TV scenarios - part I – field measurementsâ€, IEEE Transactions on Broadcasting, Vol. 48, No. 2, pp. 111-115, June 2002.
M. M. Velez, A. Arrinda, , P. Angueira, D. de la Vega, J. L. Ordiales, “DVB-T BER measurements in the presence of adjacent channel and co-channel analogue television interferenceâ€, IEEE Transactions on Broadcasting, Vol. 47, No. 1, pp. 80-84, March 2001.
S. O’Leary, “Digital/Analogue Co-channel Protection Ratio Field Measurementsâ€, IEEE Transactions on Broadcasting vol. 44, No. 4, pp.540-546, Dec 1998.
W. Y. Zou, Y. Wu. “COFDM: An Overviewâ€, IEEE Transactions on Broadcasting, Vol. 41, No. 1, March 1995.
A. Arrinda, M.M. Velez, P. Angueira, D. de la Vega, J.L. Ordiales, “Adjacent and Co-channel Interference Disturbances from a Digital Terrestrial Television Signal (COFDM-8K System) on Analogue PAL Systemsâ€, IEEE Transactions on Broadcasting, Vol. 45, No. 4 , pp. 392 -399, December 1999.
A. Arrinda, M. Ma Velez, P. Angueira, D. de la Vega, J. L. Ordiales, “Digital Terrestrial Television (COFDM 8k System) Field Trials And Coverage Measurements In Spainâ€, IEEE Transaction on Broadcasting, Vol. 45, No. 2, pp. 171-176, December 1999.
ETSI (European Te1ecommunications Standards Institute), digital video broadcasting (DVB), framing structure, channel coding and modulation for digital terrestrial television (DVB-T), ETS 300 744, 1997.
ETSI (European Te1ecommunications Standards Institute), digital video broadcasting (DVB), implementation guidelines for DVB services. Transmission aspects, ETS 101 190, 1997.
Regional radio communication conference for planning of the digital terrestrial broadcasting service (RCC-04), ITU-R Report, Geneva 2004.
Planning criteria for digital terrestrial television Services in the VHF/UHF bands, Rec. ITU-R BT 1368-2, 2000.
CEPT, The Chester 1997 Multilateral coordination agreement relating to technical criteria, coordination principles and procedures for the introduction of terrestrial digital video broadcasting (DVB¬-T), 1997.
Downloads
Published
Issue
Section
License
- Papers must be submitted on the understanding that they have not been published elsewhere (except in the form of an abstract or as part of a published lecture, review, or thesis) and are not currently under consideration by another journal published by any other publisher.
- It is also the authors responsibility to ensure that the articles emanating from a particular source are submitted with the necessary approval.
- The authors warrant that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required.
- The authors ensure that all the references carefully and they are accurate in the text as well as in the list of references (and vice versa).
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-NonCommercial 4.0 International that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.
