【摘要】 为了用System View仿真软件对PCM30/32路数字电话传输系统进行仿真,根据PCM30/32路数字电话传输系统的组成框图,设计了TS8路语音信号抽样量化编码并/串转换仿真电路、32路PCM语音信号时分复用仿真电路、TS8路信号分路及数模转换电路和TS8路时隙选通脉冲产生仿真电路,对各种仿真电路的原理进行了详细描述.通过实验给出了TS8路仿真语音信号的接收和发送波形,并对仿真结果进行了分析.更多还原

【Abstract】 In order to simulate the PCM30/32 channels digital telephone transmitting system with System View simulation software,based on the system chart consisting of simulation subsystems,the simulation circuit diagrams are proposed for TS8 channel audio signal sampling,quantization,coding serial-parallel conversion,division,digital-analog conversion,time-slot passing pulse generating and 32 channels PCM audio signals time-division multiplexing.Moreover the principle of the circuits is explained in detail.At the same time,the simulation receiving and transmitting shapes of TS8 channel audio signal are displayed clearly.Finally,the simulation effect is also analyzed.更多还原