M profile data, this paper also shows that the main factor of the overreach interference in this measurement is duct propagation due to meteorological condition." />
Nothing Special   »   [go: up one dir, main page]

Proposal of an Overreach Measurement Method for Digital Terrestrial TV Service Using FM Broadcasting Waves

Masahiro NISHI
Koichi SHIN
Teruaki YOSHIDA

Publication
IEICE TRANSACTIONS on Communications   Vol.E97-B    No.10    pp.2167-2174
Publication Date: 2014/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E97.B.2167
Type of Manuscript: PAPER
Category: Antennas and Propagation
Keyword: 
digital terrestrial TV,  overreach interference,  FM,  RSSI,  CNR,  

Full Text: PDF(1.5MB)>>
Buy this Article


Summary: 
In the digital terrestrial TV broadcasting system, it is important to evaluate both quantitative levels and sources of overreach interference, because it can degrade the TV service quality. This paper newly proposes an overreach measurement method that simultaneously monitors RSSI (Received Signal Strength Indicator) and CNR (Carrier to Noise power Ratio) of the TV waves and RSSI of FM waves. The results of measurements conducted in Hiroshima prefecture show that our proposed method can evaluate the level of overreach interference in the TV waves and also identify the source of the interference. Total 43 overreach interference events were found in the proposed method from one-year measurement in 2012. Based on M profile data, this paper also shows that the main factor of the overreach interference in this measurement is duct propagation due to meteorological condition.