有线数字电视信道编码技术

摘要

Recently the digital television transfer into a climax,more and more users watch cable digital TV at home.During the transmission of cable digital TV signals,using the core technology is the digital cable television channel coding techniques which ensure the transmission of the signals correctly and properly.Based on the description of the digital cable TV and channel coding,this paper detailed analyzed and discussed the principle and meaning of the parameters of the data randomization,RS coding and convolution interleaving in the digital cable television channel coding.%在传输有线数字电视信号的过程中,为保证信号正常无误地传送,采用的核心技术就是有线数字电视信道编码技术。在介绍有线数字电视及信道编码的基础上,详细分析讨论了有线数字电视信道编码中的数据随机化、RS编码和卷积交织等技术的原理及其参数的意义。