TY - GEN
T1 - Effect of the Variation of Atmospheric Refractive Index on Signal Transmission for Digital Terrestrial Television in Jos, Nigeria
AU - Zhimwang, Jangfa T.
AU - Ogherohwo, Enoh P.
AU - Alonge, Akintunde A.
AU - Ezekiel, Agbalagba O.
AU - Samuel, Shaka O.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this paper, the effect of the variation of atmospheric refractive index on digital terrestrial television signal is examined. Combined measurements of signal strength and atmospheric parameters - such as temperature, relative humidity and atmospheric pressure - were obtained using network analyzer and weather station respectively. Data obtained over the period of twelve months were processed and analyzed based on International Telecommunication Union (ITU) recommendations. Results obtained revealed mild variation in the atmospheric parameters resulting in the fluctuation of atmospheric refractive index, which in turn affects the transmitted digital terrestrial television (DTT) signal. A monthly summary of these variations are as thus: from January (63.82dBuVm), February (55.81 dBuV/m), March (59.99 dBuV/m), April (62.39 dBuV/m), May (56.31 dBuV/m), June (54.54 dBuV/m), July (49.66 dBuV/m), August (50.80 dBuV/m), September (51.64 dBuV/m), October (51.00 dBuV/m), November (56.34 dBuV/m) and December (60.51 dBuV/m). It was discovered that fluctuations in refractive index contribute to atmospheric interference effects such as fading and multipath propagation. This results in loss of signal strength and increased errors in signal reception, hence, the observed variation in received signal strength for all the months under review.
AB - In this paper, the effect of the variation of atmospheric refractive index on digital terrestrial television signal is examined. Combined measurements of signal strength and atmospheric parameters - such as temperature, relative humidity and atmospheric pressure - were obtained using network analyzer and weather station respectively. Data obtained over the period of twelve months were processed and analyzed based on International Telecommunication Union (ITU) recommendations. Results obtained revealed mild variation in the atmospheric parameters resulting in the fluctuation of atmospheric refractive index, which in turn affects the transmitted digital terrestrial television (DTT) signal. A monthly summary of these variations are as thus: from January (63.82dBuVm), February (55.81 dBuV/m), March (59.99 dBuV/m), April (62.39 dBuV/m), May (56.31 dBuV/m), June (54.54 dBuV/m), July (49.66 dBuV/m), August (50.80 dBuV/m), September (51.64 dBuV/m), October (51.00 dBuV/m), November (56.34 dBuV/m) and December (60.51 dBuV/m). It was discovered that fluctuations in refractive index contribute to atmospheric interference effects such as fading and multipath propagation. This results in loss of signal strength and increased errors in signal reception, hence, the observed variation in received signal strength for all the months under review.
KW - Atmosphere
KW - Digital Receiver
KW - Refractive Index
KW - Signal Strength
KW - Television Broadcasting
KW - Terrestrial Transmission
UR - http://www.scopus.com/inward/record.url?scp=85177650188&partnerID=8YFLogxK
U2 - 10.1109/AFRICON55910.2023.10293714
DO - 10.1109/AFRICON55910.2023.10293714
M3 - Conference contribution
AN - SCOPUS:85177650188
T3 - IEEE AFRICON Conference
BT - Proceedings of the 16th IEEE AFRICON, AFRICON 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE AFRICON, AFRICON 2023
Y2 - 20 September 2023 through 22 September 2023
ER -