Measurements methodology for evaluation of Digital TV operation in VHF high-band

8th Brazilian Congress on Metrology

De Almeida, M. Pudwell Chaves^1 ; Castellanos, P. Vladimir Gonzalez^2 ; Braz, J. Alfredo Cal^1 ; David, R. Pereira^1 ; De Souza, R. Saboia Lima^1 ; Da Soledade, A. Pereira^1 ; Junior, J. Rodrigues Nascimento^1 ; Lima, F. Ferreira^3

Dmtic/Dimci, National Institute of Metrology, Quality and Technology, Inmetro, Brazil^1

Graduation Program of Electrical and Telecom. Engineering, UFF, Niterói

RJ, Brazil^2

SCE/DEAA/CGOU-Ministry of Communications - Brasília, Brazil^3

关键词: Digital Broadcasting;    Digital TV;    Environmental noise;    Field measurement;    Gaussian additive noise;    Measurement procedures;    Urban and suburban areas;    VHF High-band;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012077/pdf
DOI  :  10.1088/1742-6596/733/1/012077

来源: IOP

【 摘 要 】

This paper describes the experimental setup of field measurements carried out for evaluating the operation of the ISDB-TB(Integrated Services Digital Broadcasting, Terrestrial, Brazilian version) standard digital TV in the VHF-highband. Measurements were performed in urban and suburban areas in a medium-sized Brazilian city. Besides the direct measurements of received power and environmental noise, a measurement procedure involving the injection of Gaussian additive noise was employed to achieve the signal to noise ratio threshold at each measurement site. The analysis includes results of static reception measurements for evaluating the received field strength and the signal to noise ratio thresholds for correct signal decoding.