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Proceedings Paper

Digital HDTV transmission system via satellite
Author(s): Takahiro Nakai; Tadashi Kasezawa; Takashi Shinohara; Masami Nishida; Takashi Murakami
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Paper Abstract

This paper describes a study for digital transmission system of HDTV signals through the satellite channel. This system has been designed to utilize QPSK modulation via 36 MHz bandwidth Ku band transponder. Convolutional code of rate 3/4 and (255,239) Reed-Solomon code are applied for the purpose of error protection. The system provides the transmission rate of 40 Mbps for video. In order to achieve such video date rate, we studied adaptive noise reduction filter, adaptive motion compensation and adaptive formation of blocks for DCT. This method provides a good picture quality of HDTV signals at the rate of 40 Mbps. The results of our study prove that the system is feasible. At present, we are assembling the codec which performs source coding and part of channel coding in this system. This codec can effectively confirm the performance of the basic algorithm in MPEG2.

Paper Details

Date Published: 4 November 1993
PDF: 11 pages
Proc. SPIE 1976, High-Definition Video, (4 November 1993); doi: 10.1117/12.161476
Show Author Affiliations
Takahiro Nakai, Mitsubishi Electric Corp. (Japan)
Tadashi Kasezawa, Mitsubishi Electric Corp. (Japan)
Takashi Shinohara, Mitsubishi Electric Corp. (Japan)
Masami Nishida, Mitsubishi Electric Corp. (Japan)
Takashi Murakami, Mitsubishi Electric Corp. (Japan)

Published in SPIE Proceedings Vol. 1976:
High-Definition Video
Naohisa Ohta, Editor(s)

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