PAL彩色电视信号的高效编码
HIGH-EFFICIENCY CODING FOR PAL COLOR TELEVISION SIGNAL
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摘要: 从我国PAL制电视信号的固有特点出发,本文指出,若对PAL全信号采用fs=2fsc的亚奈奎斯特取样和DPCM编码,并利用消隐期间传送有效区数码,可实现在PCM三次群信道上传送一路彩色电视信号。Abstract: Proceeding from the specific characteristics of PAL television signals adopted in China, this paper points out that if the fs=2fsc of sub-Nyquist sampling and DPCM-encoding is used for PAL complete signal, and if the blanking time is utilized to transmit code of effective area, it is possible to transmit a color TV signal over PCM three-group channel.
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J. Rosin, Signal Processing, 22 (1991)2, 187-198.[2]T. S. Rzeszewski, R. L. Pawelski, SMPTE Journal, 95(1986)9, 889-898.[3]程玉林,亚奈奎斯特取样的PAL彩色信号,安徽大学学报(自然科学版),19(1992)1,45-51.[4][4][5]何英英等译,数字电视演播中心译文集,上海工业大学出版社(筹),上海,1987,第二篇.[6]王贻良, 尤婉英等译,数字电视人门,科学出版社,北京,1982年,第78-94页. -
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