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1)  intermodulation frequencies
互调<制>频率
2)  frequency modulation
频率调制
1.
Numerical analysis for the stochastic resonance of frequency modulation;
频率调制随机共振的数值分析
2.
A reflective dielectric resonator of performing frequency modulation for incident vibrated signal;
一种对振动信号实现频率调制的反射型介质谐振器
3.
Characteristic Analysis of Wavelength Tuning and Frequency Modulation of Coupled Cavity Laser Diodes;
耦合腔激光器的波长调谐与频率调制特性分析
3)  FM
频率调制
1.
In order to meet the requirement of high speed underwater acoustic communication,the OFDM/FM method is given in the paper,which is based on the orthogonal frequency division multiplexing(OFDM)technique.
为满足高速水声通信的需要,在对正交频分复用(OFDM)技术的原理进行研究的基础之上,结合水声信道的特性,给出了进行二次频率调制(FM)的OFDM/FM实现方法,并通过仿真得到了该方法的性能。
4)  modulation frequency
调制频率
1.
The effect of modulation frequency on phase demodulation is analyzed in sinusoidal phase modulating(SPM) interferometry for displacement measurement.
针对正弦相位调制(SPM)干涉测量技术用于位移测量时,调制频率对干涉信号相位解调的影响,提出一种调制频率的优化选择依据。
2.
The relations between pyroelectric current and sensitive area as well as modulation frequency are analysed.
本文导出热释电列阵的热传递函数,明确地分析了热释电探测器灵敏元的面积,电流响应率及调制频率的关系。
3.
lt has a deep study on low-frequency modulation characteristics, which includes the modulation wave through high-speed photodetector, the relationship between modulation frequency and threshold current , and the relationship between average output power and modulation frequency.
给出了用高速光电探测器探测到的调制信号波形,并进一步分析了调制 频率与闭值电流之间的关系,以及调制频率与平均输出功率之间的关系。
5)  modulating frequency
调制频率
1.
The influencing regularities of the number of analytical cycles, thermal convection density and modulating frequency on the detecting results were analyzed by simulation.
仿真分析得到了分析周期数、热流密度和调制频率对检测结果的影响规律。
2.
The triple harmonic signal was simulated and the best modulating frequency was given.
从理论上推导了调频光外差谐波碘稳频的信号公式,模拟出三次谐波的信号线型,并讨论调制频率的合适选取。
6)  frequency modulation rate
频率调制率
1.
In the light of implementation of this Standard and follow the information Provided in the symposium,analyzes some problems existing in the actual use of this standard for measuring parameters in aircraft electrical system and conduct a detail analysis on some key issues such as transient voltage and frequency modulation rate.
结合本标准宣贯、研讨会上所提供的信息 ,分析了飞机电气系统参数测试标准在实际应用中存在的一些问题 ,并对瞬态电压和频率调制率等重点问题进行了详细的讨论和分析。
补充资料:频率计量(见时间频率计量)


频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology

  口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
  
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