模拟信号到数字信号的转换的英文

• a/dc

• "模拟"英文翻译    imitate; copy
• "信号"英文翻译    signal; semaphore; gun
• "到"英文翻译    39
• "数字信号"英文翻译    digital signal
• "的"英文翻译    4次方是 The fourth power of 2 i ...
• "转换"英文翻译    change; transform; convert; ...
• "数字信号到模拟信号的转换" 英文翻译 :    d/ac
• "数字信号转换" 英文翻译 :    digital signal conversion
• "模拟信号转换器" 英文翻译 :    analog signal converter; asc
• "数字信号转换器" 英文翻译 :    dsc digital signal converter; signal converter
• "模拟信号" 英文翻译 :    analog signals; analogsignal; analogue signal; dummy signal; model signal; quasi-analog signal; simulated signal; simulating signal; synthetic signal
• "模拟信号链" 英文翻译 :    analog signal link
• "拟模拟信号" 英文翻译 :    quasianalog signall
• "准模拟信号" 英文翻译 :    quasi-analog sigmoid-procto-anoscope
• "数字信号的判决瞬时" 英文翻译 :    decision i tant of digital signal; decision instant of digital signal
• "数字信号的时间调制" 英文翻译 :    digital time modulation
• "数字信号的有效瞬时" 英文翻译 :    significant i tants of a digital signal; significant instants of a digital signal
• "数字信号" 英文翻译 :    digit signal; digital signals; ds digital signal; numeral signal; numerary signal; numerical signal
• "数字信号谱" 英文翻译 :    digital signal spectrum
• "数字信号图" 英文翻译 :    digital signaling diagram
• "调相模拟信号" 英文翻译 :    phase modulation analog
• "话音模拟信号" 英文翻译 :    voice analog signal
• "模拟信号触点" 英文翻译 :    contact for analog signal
• "模拟信号处理" 英文翻译 :    analog signal processing; ash
• "模拟信号传输" 英文翻译 :    analog signal transmission

• 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。