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科技与信息时代的到来,我们对信息的需求量更大。电视作为当今信息时代的主流媒体,应该充分发挥他们的优势,更好传输信息。在原有传输技术和标准不断完善的同时,新的研究成果也在不断推出和应用之中。数字电视信号的传输是指经过信源编码和系统复接后生成的传输码流的传输,或者说是由数字“0”或“1”组成的携带有电视信息的数据流的传输。通信领域采用的SDH(同步数字体系)、ATM(异步传输模式)等传输技术也同样用于电视信号的传输体制中;多媒体通信和宽带综合业务数字网(B-ISDN)的发展,加速实现了各种信息节目的交互式传输。本文对电视信号传播技术的发展与展望进行了分析和介绍。
The arrival of technology and information age, we have a greater demand for information. As the mainstream media in the information age, TV should give full play to their advantages and transmit information better. In the original transmission technology and standards continue to improve at the same time, new research results are also being introduced and applied. The transmission of digital television signal refers to the transmission of the transmission code stream generated after the source coding and the system multiplexing, or the data stream carrying the television information which is composed of the numbers “0 ” or “1 ” transmission. Transmission technologies such as SDH (Synchronous Digital Hierarchy) and ATM (Asynchronous Transfer Mode) adopted in the field of communications are also used in the transmission system of television signals. The development of multimedia communications and broadband integrated services digital network (B-ISDN) has been accelerated Interactive transmission of various information programs. This article analyzes and introduces the development and prospect of television signal propagation technology.