frequency-shift中文是什么意思

• 频率偏移
• 移频,调频

• "frequency"中文翻译    n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...
• "shift"中文翻译    vt. 1.变动；改变；搬移；移动；转移；变换；替换；更 ...
• "frequency shift" 中文翻译 :    频率偏移频移; 移频
• "shift frequency" 中文翻译 :    漂移频率; 移频
• "narrow shift frequency shift keying" 中文翻译 :    窄移频键控
• "audio frequency shift keying" 中文翻译 :    声频移频健控
• "audio frequency shift modulator" 中文翻译 :    声频移频调制器
• "audio-frequency shift modulation" 中文翻译 :    音频频移调制
• "audio-frequency shift modulator" 中文翻译 :    声频位移调变器
• "binary frequency shift keying" 中文翻译 :    二进制移频键控
• "binary frequency-shift keying" 中文翻译 :    二进制频率变换调制
• "carrier frequency shift" 中文翻译 :    载频偏移
• "demodulator of frequency shift signal" 中文翻译 :    移频信号解调器
• "differential doppler frequency shift" 中文翻译 :    差动多普勒频移
• "digital frequency shift" 中文翻译 :    数字移频
• "doppler frequency shift" 中文翻译 :    多普勒频移
• "doppler shift frequency spectra" 中文翻译 :    多普勒频移光谱
• "doppler shift in frequency" 中文翻译 :    多普勒频谱转换
• "double frequency shift" 中文翻译 :    双移频
• "double frequency shift keying" 中文翻译 :    双频移键控; 双移频键控
• "fast frequency shift keying" 中文翻译 :    快速移频键控
• "fast frequency-shift keying" 中文翻译 :    快速频移键控
• "frequency shift adapter" 中文翻译 :    移频附回器; 移频附加器
• "frequency shift coded data" 中文翻译 :    频移编码数据
• "frequency shift coding" 中文翻译 :    移频编码

• Research on frequency - shift sending equipment with microcomputer
  移频发送设备的电子化方案研究
• Afsk for audio frequency - shift keying
  音频频移键控
• Study on the model of transmitting cable crosstalk in frequency - shift track circuit
  移频轨道电路传输电缆串音模型的研究
• Fsk for frequency - shift keying
  频移键控
• The practice of doppler frequency - shift signal extraction in ultrasonic blood flow detector
  多普勒频移信号提取技术在超声血流检测中应用
• The optical sampling with frequency - shift , asynchronous optical sampling , and photonic analog to digital conversion based on time - interleave were investigated , included the theoretical analysis and experimental demonstration
  建立了频差法光脉冲取样、异步光取样及基于时分光取样的光子模数转换实验装置。
• 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 ministry of railway has developed two kinds of frequency - shift track circuits based on the primary 4 - information frequency - shift system : 18 - information frequency - shift auto - blocking track circuit made in china and um - 71 jointless track circuit made in france , and put them into use on some important lines . but at the mean while , the safety of running train becomes austerer and austerer
  铁道部根据我国国情,在原有4信息移频制式的基础上,研制开发了两种移频轨道电路:国产18信息移频自动闭塞系统和法国um - 71无绝缘轨道电路系统,并将其应用到我国部分主要线路上。
• At the last we program the parameter detecting methods for frequency - shift track signal with c language and assembly language base on code composer studio of dsp . then we realize it on the dsp chip of tms320f2812 . experiments shows that it can satisfy the demand of real time and precision
  最后在dsp的集成开发环境ccs ( codecomposerstudio )上采用c语言和汇编语言混合编写移频轨道信号的参数检测算法,并将该算法移植到dsp芯片( tms320f2812 )上实现,测试结果表明上述算法能够满足实时性和精度的要求。
• The actively and passive mode - locked fiber ring laser and two types of photonic switching , slalom ( semiconductor laser amplifier loop mirror ) and uni ( ultrafast nonlinear interferometer ) were developed . this thesis presented the principle and the requirements for the optical of frequency - shift sampling module under common conditions
  研制了作为光取样脉冲源的主动锁模和被动锁模光纤激光器；半导体光放大器环镜及超高速非线性干涉仪的光子开关，并进行了频差法光取样、异步光取样及基于时分光取样的光子模数转换的实验研究。