移频信号的英文

• frequency-shift signaling

• "移"英文翻译    move; remove; shift
• "频"英文翻译    frequent
• "信号"英文翻译    signal; semaphore; gun
• "移频信号解调器" 英文翻译 :    demodulator of frequency shift signal
• "移频键控射频信道" 英文翻译 :    frequency shift keyed radio channel
• "q视频信号" 英文翻译 :    q video signal
• "半频信号" 英文翻译 :    half-frequency signal
• "泵频信号" 英文翻译 :    pump signal; pumping signal
• "单频信号" 英文翻译 :    simple signal
• "导频信号" 英文翻译 :    pilot signal; pilotsignal
• "调频信号" 英文翻译 :    fm signal; frequency modulated signal; frequency modulation signal; frequency-modulated signal
• "多频信号" 英文翻译 :    multifrequency signal
• "多频信号制" 英文翻译 :    multifrequency signalling system
• "高频信号" 英文翻译 :    high frequency signal; high-frequency signal
• "镜频信号" 英文翻译 :    image frequency signal
• "来音频信号" 英文翻译 :    afms
• "零中频信号" 英文翻译 :    zero intermediate frequency signal
• "拍频信号" 英文翻译 :    beat signal
• "扫频信号" 英文翻译 :    swept-frequency signal
• "射频信号" 英文翻译 :    radio frequency signal; radio-frequency signal
• "声频信号" 英文翻译 :    audio signal◇声频信号编码器 audio coder; 声频信号发生器 audio signal generator; 声频信号接线台 audio patch bay; 声频信号盘 audible signal panel
• "声频信号盘" 英文翻译 :    audible signal panel
• "视频信号" 英文翻译 :    vision signal; video signal◇视频信号检波 video rectification; video detection; 视频信号接收 video reception; 视频信号增益 video gain; 视频信号振幅 amplitude of video signal; 视频信号周期 video interval
• "视频信号窗" 英文翻译 :    video window
• "视频信号线" 英文翻译 :    video signal cable

• The two rails are not only signal lines of track circuits , but also loop current line of locomotive traction current in electrified railway block
  在电气化铁路区段，两条钢轨既是移频信号的传输线又是机车牵引电流的回流线。
• In testing upper frequency , lower frequency , and modulating frequency , the method of directly testing upper frequency and lower frequency then calculating carrier frequency is adopted
  在测量移频信号的上、下边频及载波频率时，采用直接测量上、下边频，然后由上、下边频求中频载波的方法。
• Because frequency - shift signal is a kind of modulation signal , it ' s waveform is two ac sine signal of alternating i . e . upper frequency and lower frequency which was generated by low frequency modulating middle frequency
  由于移频信号是一种调频信号，其波形为低频信号调制中心载频信号后产生的低端载频（下边频）和高端载频（上边频）两个交替变化的正弦交流信号。
• The content of this theme is as follows : without time , without open , without stopping railway transport , and without interrupting traction current of block tested , meanwhile track circuit parameters in electrical and no electrical blocks is measured of on - line , dynamic and real - time . these parameters include voltage of fsk signal , voltage of industrial and harmonic wave interference , upper frequency , lower frequency , carrier frequency and low frequency 18 messages frequency
  本课题研究内容：在不要点，不开天窗，不中断行车，不中断被测区段牵引电流的情况下，在线、动态、实时测量电化区段和非电化区段的移频信号电压、工频干扰电压，移频信号（调频信号）的上边频、下边频、载波频率、以及低频18信息频率等参数。