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... 泰博文档网 关键词：中频，数字移相器，Ku波段，加载线，开关线，3dB支线耦合器 [gap=2381]Key Words: Intermediate Frequency (IF), digital phase shifter, Ku-band, loaded-line, switched-line, 3dB branch-line co...
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...项目） 电路型态（ Circuit Type ）：四重变频超外差（ Quad-Conversion Super Hetrodyne） 中间频率（ Intermediate Frequency ）：一次中频73.05MHz， 二次中频8.83MHz， 三次中频455KHz， 四次中频100KHz 关于接收机的部份，最基本的是要先定义其电路型态和...
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中频频率 （ Intermediate Frequency ）： 中频频率 的选定，对接收的性能也有很大的影响，中间频率较高，防止镜频干扰的能力较强；但相对的接收增益和选择性则较差，...
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intermediate frequency amplifier [电子] 中频放大器
intermediate frequency transformer 中频变压器 ; 中频变换器
intermediate frequency jamming [电子] 中频干扰
intermediate frequency attenuator [电子] 中频衰减器
intermediate frequency furnace 中频感应炉 ; 中频炉
zero intermediate frequency [电子] 零中频
intermediate frequency supply 中频电源
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中频 - 引用次数：357
We study the techniques of generating the PPM-PS signals and intermediate frequency (IF) sampling.
6．研究了脉位调制脉冲串信号的产生和中频采样技术。
参考来源 - 脉位调制脉冲串雷达信号理论与应用研究中频放大器 -
中频 - 引用次数：95 参考来源 - 宽带信号数字解调在SystemView上的仿真
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中频 - 引用次数：2 参考来源 - 印刷品防伪新技术研究
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中
·2,447,543篇论文数据，部分数据来源于NoteExpress
Intermediate frequency
- abstract: In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning, resulting in a signal at the difference or beat frequency.
以上来源于: WordNet
柯林斯英汉双解大词典
intermediate frequency
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1.
N the frequency to which the signal carrier frequency is changed in a superheterodyne receiver and at which most of the amplification takes place 中频 [electronics]
双语例句
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The key component of the system is a digital intermediate frequency receiver employing DSP and FPGA to obtain amplitude and phase data in real-time, which improves measurement speed and flexibility.
该系统的关键部件是一个数字中频接收机，利用DSP和FPGA实时获取幅度和相位数据，从而提高了测量速度和灵活性。
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Low and intermediate frequency instability models are taken up first.
首先处理低频和中频不稳定性的模型。
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The block diagram of intermediate frequency feed thru nuller is given.
给出了设计中频对消器的原理框图。
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