Orthogonal frequency division multiplexer 正交频分多路复用技术
Time division multiplexing 时分多路复用技术
Wireless frequencies are a scarce resource , so wireless providers use multiplexing to send multiple calls over a single frequency 无线频率是稀有的资源,因此无线频率提供商使用多路复用技术通过一个频率发送多个呼叫。
At its core , sonet uses time - division multiplexing ( tdm ) - - a technology many experts think is outdated and incapable of delivering the high - speed data services users are demanding 其核心是使用了时分多路复用技术( tdm ) ,这是一项很多专家认为已过时,不能提供用户要求的高速数据服务的技术。
Based on the above analysis results , the system design is finished . the system design principal is detailed . the system architecture and data transmission proctocal are discussed . in order to transmit multi - channel data simutaneously on the monacable , tdm ( time division multiplexing ) technique is adoped in the system design . a special code is designed for data transmission on the tool - bus , so that the too - bus can both supply power and transmit data 包括单芯电缆数据传输系统的设计思想、结构设计和数据传输协议的制定。在单芯电缆数据传输系统设计中,采用时分多路复用技术,实现多种参数仪器数据的同时传输。在仪器总线上采用特殊的码进行数据传输,使得仪器总线既能供电又能传输数据。