模拟信号到数字信号的转换的英文

例句与用法

1. In this paper , we briefly introduced the performance of wave coding and vocoder , emphasizedly studied the principle and performance of variable rate vocoder q4401 , including the internal construction and pins , qcelp coder & vocoder , pcm interface , cpu interface initialization process , command format and so on . we also designed a application circuit , with the experiment validated its performance . in this design , the pcm interface chip is tp3057 , it was used to finish a / d transform , the compress coding was finished by q4401 , the initialization and control were accomplished by 8051 singlechip
   重点是研究变速率语音编解码芯片q4401的工作原理及性能。其中包括q4401的内部结构及管脚、 qcelp编码方式、 pcm接口、 cpu接口、初始化过程、命令格式等，并在此基础上，设计一个实际的应用电路，通过实验，验证其性能。在设计中用pcm接口芯片tp3057来完成从模拟信号到数字信号的转换，再由q4401进行压缩编码，对q4401的初始化及控制由8051单片机来完成。