In a time division multiplex ( tdm ) system , a repetitive group of signals resulting from a signal sampling of all channels , including any additional signals for synchronizing and other required system information 在时分多路复用( tdm )系统中,由所有信道的信号采样中产生的重复信号组,它包括为同步要求的附加信号和其它需要的系统信息。
This thesis researches on a new scheme of satellite communication with anti - jamming ability , which is a system based on onboard fdma - cwtdm ( continuous wave time division multiplex ) conversion according to the idea of a chinese patent and spread spectrum technique to constitute a mesh network 本文研究一种具有一定抗干扰能力的卫星通信系统,它是根据一项中国发明专利的思想、采用星上fdma - cwtdm (频分多址?连续波时分复用)转换和扩频技术构成无中心网状网的一种卫星通信新体制。
Around this new scheme , the author has done some research as follows : 1 . the author researches , in depth , on some key techniques such as continuous wave time division multiplex ( cwtdm ) , multi - carrier demodulation ( mcd ) and frequency division de - multiplexing , and has some of them applied to the fdma - cwtdm conversion 与fdma - tdm转换器相比,星上fdma - cwtdm转换器的功耗和设备复杂度明显减小,作者围绕这一新体制展开了以下方面的研究: 1深入研究了连续波时分复用( cwtdm ) 、全数字化多载波解调( mcd ) 、基于移相阵列fft法的频分分路等关键技术,并将它们用于fdma - cwtdm转换方案。
time division multiplexとは意味:時分割多重(方式)◆【略】TDM time division multiplex meaning: noun (telecommunications) A form of multiplex (qv) in which each signal is sent as a series of pulses, the gaps between which allow other pulses to be interleaved