1) frequency modulation(FM)
频率周制，调频
2) periodic frequency modulation
周期频率调制
3) periodic frequency modulation
周期性频率调制
4) 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
5) 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。
6) 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。
补充资料：周期性
周期性
periodicity
①事物反复有规律的变化，每一次变化称为一个周期。如生理状态下的心动周期、呼吸周期、月经周期等。②疾病过程中临床症状多次重复出现的规律性。如周期热、溃疡病周期性上腹部疼痛等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条