Firstly, this paper generally introduces the development of HDTV at home and abroad, and expounds the principle of the OFDM and the COFDM scheme of the HDTV broadcast transmission system.
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- 本文首先介绍了国内外高清晰度电视发展的概况,阐述了OFDM原理和高清晰度数字电视广播系统的COFDM方案。