本振频率的英文

• local frequency

• "本振"英文翻译    local oscillator
• "频率"英文翻译    frequency; rate
• "本振频率是5" 英文翻译 :    mhz pl
• "自动本振频率控制" 英文翻译 :    automatic local frequency control
• "共振频率；谐振频率" 英文翻译 :    frequency, resonant; resonance frequency; resonant frequency
• "颤振频率" 英文翻译 :    flutter frequency; flutter oscillation frequency
• "磁共振频率" 英文翻译 :    magnetic resonance frequency
• "反共振频率" 英文翻译 :    antiresonant frequency
• "反谐振频率" 英文翻译 :    antiresonant frequency
• "共振频率" 英文翻译 :    formant frequency; resonance frequency; resonant frequency
• "共振频率计" 英文翻译 :    tuned circuit type frequency meter
• "激振频率" 英文翻译 :    exciting frequency
• "扭振频率" 英文翻译 :    torsion frequency; torsional frequency
• "诺振频率" 英文翻译 :    resonance frequency
• "歇振频率" 英文翻译 :    quench frequency; quenched frequency
• "谐振频率" 英文翻译 :    antiresonance frequency; harmonic filter; harmonic frequency; resonant frequency; resonant vibration frequency
• "谐振频率法" 英文翻译 :    resonant frequency method
• "谐振频率计" 英文翻译 :    reso-meter; resonance frequency meter
• "主共振频率" 英文翻译 :    principal resonant frequency
• "主振频率" 英文翻译 :    driving frequency; master frequency
• "自谐振频率" 英文翻译 :    frequency, self-resonant (srf); self resonant frequency; self-resonance frequency; self-resonant frequency (srf)
• "自振频率" 英文翻译 :    natural frequency of vibration; natural vibration frequency
• "铯共振频率" 英文翻译 :    caesium resonance frequency
• "并联共振频率" 英文翻译 :    parallel resonance frequency
• "并联谐振频率" 英文翻译 :    parallel resonance frequency; parallel resonant frequency

• The sub - harmonic mixer is used as unit mixer to reduce lo to its 1 / 4
  此镜频抑制混频器采用谐波混频器作为单元混频器,将本振频率降低为基频的1 / 4 。
• Select installation and then antenna setting , and set respectively the local oscillator frequencies of the high - frequency tuner of 146 , 138ku , 138c band and so on
  选择安装里的天线设定，分别设置146 、 138ku及138c波段等等的高频头本振频率。
• This problem could be resolved by using sub - harmonic mixer ( shm ) . instead of using mmw lo , shm using microwave signal with frequency equals 1 / 2 or 1 / 4 of mmw lo frequency , thus the technical difficulty and cost of mmw system is reduced remarkably
  采用亚谐波混频器( sub - harmonicmixer )可将本振频率降为基波频率的1 / 2或1 / 4 ,从而克服了直接采用毫米波本振源带来的困难,降低了射频接收机的技术难度和系统成本。
• Mixers are the key components of many microwave and millimeter - wave systems . the super - heterodyne receiver is always applied in modern communication system , mixer becomes the key component as is at the first part of system . but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave . sub - harmonic mixer is a good solution to this problem now . in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency . in this paper the design and fabricate of sub - harmonic hmic mixers ( 2 , 4 ) at w - band are introduced
  混频器是微波通信、射电天文学、雷达、等离子物理、遥控、遥感、电子对抗,以及许多微波测量系统中至关重要的部件。在现代通信系统中,毫米波频段通常采用超外差接收机,混频器作为第一级就成为关键部件。由于在毫米波频段,同频段高性能的本振源成本高,技术难度大,采用分谐波混频技术是解决此问题的有效途径,只需射频频率1 / 2 、 1 / 4甚至1 / 8的本振频率即可实现混频。
• Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters , local oscillation ( lo ) frequency , bandwidth of lo frequency under the condition that receiver configuration , sensitivity , dynamic range , instantaneous bandwidth and precision of frequency measurement are fixed
  摘要针对跳频接收机的体制和灵敏度、动态范围、瞬时工作带宽、测频精度等设计参数，通过改变预选器组成、本振频率和本振带宽，分析接收信道的中频选取原则，以实现跳频接收机的互调抑制设计。
• Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter , band pass filter , the transition from waveguide to finline and the transition from waveguide to suspended stripline , the structure design and manufacture were made . the measured results match the requirement . different from the traditional mixers used in the domestic communications satellites , the sub - harmonic balance mixer type was used in the ka - band mixer design
  在ka频段混频器的研究过程中，通过对卫星和飞船所用到的混频器进行研究，在对ka波段的传统射频前端电路的分析基础上，提出改变以往星上传统的基波混频方案，采取了次谐波混频方案，降低了本振频率，简化了本振链路，使噪声特性、可靠性获得改善。
• It mainly includes two parts : the frequency offset caused by the difference of the mobile equipment ’ s transmitting frequency and the nodeb ’ s receiving frequency ; the frequency offset caused by the vehicle of the mobile equipment , which is called doppler shift . accurate frequency offset estimation and compensation is of importance for demodulation
  它主要由两部分构成:由于nodeb (基站)和移动台晶振本振频率的不同而产生频偏;由于移动台运动产生多普勒效应,引起的多普勒频偏,在信号功率谱上表现为多普勒频谱扩展(以后简称多普勒扩展) 。

• 本振频率的日语：ローカル周波数 ローカルフリヶンシー ローカルしゅうはすう