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本文从全电视信号的频谱特征出发,讨论了各种数字梳状滤波器的分析设计。这些数字梳状滤波器,使亮度和色度信号达到了最大限度的分离,从而大大地降低了亮—色交调失真及相互串扰,提高了电视接收机的观看效果。文章在最后给出了进一步彩电观看效果的方法,如降低大面积场间闪烁和局部行间闪烁。总之,所有这些对未来视频系统的分析设计提供了不少启迪和借鉴。
In this paper, we start with the spectral characteristics of the full TV signal, and discuss the design and analysis of various digital comb filters. These digital comb filters maximize luminance and chrominance separation, greatly reducing bright-tonal crosstalk and crosstalk, and improving the television receiver’s viewing. Finally, the article gives the method of further TV viewing effect, such as reducing the flicker of large area and the flickering of local lines. In short, all of these provide a lot of inspiration and reference for the analysis and design of future video systems.