【作者】 荣美； 范成发； 向勇；

【Author】 RONG Mei,FAN Cheng-fa,XIANG Yong (Guiliu Expressway Managing Department, Liuzhou, Guangxi, 545000, China? Guangxi Communication Scientific Research Institute,Nanning,Guangxi,530001,China;Nanning Jasay Digital Technology Co. L td,Nanning,Guangxi,530003,China)

【机构】 桂柳高速公路管理处； 广西交通科学研究所； 南宁捷赛数码科技公司；

【摘要】 采用光纤作为传输介质设计高保真语音传输的光纤数字广播系统。光纤数字广播系统由扬声器、光纤数字广播机、两芯光纤、集中控制器、管理软件等组成,光纤数字广播机的光收发模块采用波分复用技术,将网连结成“环”,组成自愈环网,在一芯光纤上可以同时传两种不同波长的光信号,使系统能够远距离传输和高速度传输,具备更高的稳定性。更多还原

【Abstract】 A fiber digital broadcast system of hi-fi sound is developed in use of fiber as transmission medium. The fiber digital broadcast system consists of loudspeaker and fiber broadcast equipment, two core fiber, centre controller, management software. The WDM technique is used in the light transmission module of fiber broadcast equipment. And the net is formed as a "circularity",and develops to a self-heal ring. The light signals of two different kinks of wavelengths can be transmitted in a single core fiber, and that makes long distance transmission with high speed and stability possible.更多还原