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用数字电路处理彩色视频信号有其突出的优点,除了能得到精确的彩色解调之外,还能通过附加措施提高图象质量。此外,还为利用N-MOS技术制造的微处理机实现复杂的“智能”控制提供了可能性。视频信号的数字化最基本的是数字编码所用的方式。对于家用接收机来说,只有对复合彩色全电视信号FBAS数字化才能随后对它作全面的数字信号处理[1]。图1表示数字彩色解码器的主要方
Digital video signal processing has its outstanding advantages, in addition to get accurate color demodulation, but also through additional measures to improve image quality. In addition, it offers the possibility of implementing complex “smart” controls for microprocessors manufactured with N-MOS technology. Digital video signal is the most basic way of digital coding. For home receivers, only digital composite full color television signals FBAS can then be fully digital signal processing [1]. Figure 1 shows the main aspects of a digital color decoder