Digital HDTV transmission system via satellite

Takahiro Nakai; Tadashi Kasezawa; Takashi Shinohara; Masami Nishida; Takashi Murakami

doi:10.1117/12.161476

4 November 1993 Digital HDTV transmission system via satellite

Takahiro Nakai, Tadashi Kasezawa, Takashi Shinohara, Masami Nishida, Takashi Murakami

Proceedings Volume 1976, High-Definition Video; (1993) https://doi.org/10.1117/12.161476
Event: Video Communications and Fiber Optic Networks, 1993, Berlin, Germany

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.

Citation Download Citation

Takahiro Nakai, Tadashi Kasezawa, Takashi Shinohara, Masami Nishida, and Takashi Murakami "Digital HDTV transmission system via satellite", Proc. SPIE 1976, High-Definition Video, (4 November 1993); https://doi.org/10.1117/12.161476

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