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频分复用是按频率分割多路信号的方法,也就是将信道的可用频带分成若干互不交叠的频段,每路信号占据其中的一个频段。在接收端用适当的滤波器将多路信号分开,分别进行解调和终端处理。时分复用是按时间分割多路信号的分法,即将信道的可用时间分成若干顺序排列的时隙,每路信号占据其中的一个时隙。在接收端用时序电路将多路信号分开,分别进行解调和终端处理。本文就利用LABVIEW软件模拟频分复用的通信过程及通信质量。
Frequency division multiplexing is a method of dividing multiple signals by frequency, that is, dividing the available frequency band of the channel into several non-overlapping frequency bands, and each signal occupies one of the frequency bands. In the receiving end of the filter with the appropriate multi-channel signal separation, respectively, for demodulation and terminal processing. Time Division Multiplexing is the time-division multi-channel signal of the sub-method, the channel is about the available time is divided into a number of sequential slots, each signal occupying one of the slots. At the receiving end, the multi-channel signal is separated by a timing circuit, and demodulation and terminal processing are respectively performed. In this paper, we use LABVIEW software to simulate the frequency division multiplexing communication process and communication quality.