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An Enhanced Front-End Algorithm for Reducing Channel Change Time in DVB-T System
Inwhee JOE
Jongsung CHOI
Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.1 pp.350-353
Publication Date: 2009/01/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Broadcast Systems
Keyword:
enhanced front-end algorithm,
auto scan mode,
normal scan mode,
DVB-T system,
Full Text: PDF(166.7KB)
Summary:
To address the low performance for channel scanning in the DVB-T system, we propose an enhanced front-end algorithm in this paper. The proposed algorithm consists of Auto Scan and Normal Scan, which is a part of the tuning algorithm for front-end (tuner) drivers in the DVB-T receiver. The key idea is that the frequency offset is saved when performing Auto Scan in order to reduce the channel change time for Normal Scan. In addition, the results of a performance evaluation demonstrate that our enhanced front-end algorithm improves the performance of channel scanning significantly, as compared to the generic front-end algorithm.
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