论文部分内容阅读
自从1983年欧洲推出MAC制作为卫星传输彩色电视的一种统一的图象信号规格以来,引起了各国的普遍重视,是继日本对HDTV的贡献之后,又一次激励了对下一代电视广播新制式的世界性研究热潮,也加深了对现行电视中根本性缺陷的理解。 MAC制是在记取了彩色电视分裂为NTSC、PAL和SECAM三种制式的二、三十年教训之后,准备借直接卫星广播新时代的良机,制订出来的一种彩色电视信号统一编码方式,称之为复用模拟分量方式。它与现行电视的复合信号不同,不采取频域复用方式,而是
Since the introduction of MAC in Europe as a unified video signal standard for satellite transmission of color television in 1983, it has drawn the universal attention of all countries. It is another contribution to the next generation of television broadcasting after Japan contributed to HDTV The worldwide research boom has also deepened the understanding of the underlying flaws in current television. The MAC system is a unified coding method for color television signals prepared by taking advantage of two or three decades of lessons learned from the splitting of color television into three formats: NTSC, PAL and SECAM. It is claimed to be a good opportunity for a new era of direct satellite broadcasting. It is a way to reuse analog components. It is different from the composite signal of the current television and does not adopt the frequency-domain multiplexing method