【摘要】 ADSL(不对称数字用户线)技术是在双绞铜线上进行视频通信的新技术,它采用DMT(离散多音调制)编码等传输技术,可为现有的电话用户提供宽带业务。文章详细论述了ADSL的关键技术、基本结构、传输性能及其应用前景。更多还原

【Abstract】 ADSL(Asymnetric Digital Subscriber Line)is a new technology for video communication over twisted copper pairs. By using DMT line coding, it could provide broad-band services for existing telephone customs. In this paper, the key techniques, system architecture, transmission characteristics and the main applications of ADSL are studied in detail.更多还原