The evolution of the signal-noise ratio R with the quantum noise intensity D is discussed in the parameters of the noise and signal frequency and time period modulation frequency.
用线性化近似方法计算了单模激光增益模型的光强功率谱及信噪比,以噪声、信号频率和时间周期调制频率为参数讨论信噪比R随量子噪声强度D的变化,发现负关联情况下会出现随机共振,对噪声间关联程度的时间周期调制是引发随机共振的重要因素。
Effect of high-frequency periodic modulation on the nonlinear Landau-Zener tunneling;
非线性朗道-齐纳隧穿的高频周期调制效应
Electromagnetic analysis of finite periodic frequency selective surfaces
有限周期频率选择面的电磁特性分析
half-line period
半行周期，横扫频率半周期
This radio signal has a frequency of200,000 cycles per second.
这个无线电信号的频率是每秒200,000周期。
Frequency Conversion Based on Periodically Poled Lithium Niobate Waveguide;
周期极化铌酸锂波导的频率变换研究
The lowest frequency of a periodically varying quantity or of a vibrating system.
基频周期变化量或振动系统的最低频率
New Frequency Track Technology Based on Multi-cycle Synchronization and Frequency Multiplication Phase-lock
新型多周期同步和倍频锁相的频率跟踪技术
Of or relating to the component of lowest frequency of a periodic wave or quantity.
基波的周期波或周期量的最低频率的分力的或与此有关的
Amplify any variant frequency cycle and route them to me.
把每个不同的频率周期放大然后发给我
A new interace circuit for converting capacitance to frequency to period was designed.
设计了一种新型的电容-频率-周期转换接口电路。
The clock used should be free from significant phase or frequency jitter.
应用的时钟应没有重大的周期或频率的跳动。
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
除了振幅和波长，周期波有它自己的频率。
Effects of Cyclic Pressure at Different Frequencies on the Constructing of Tissue-engineering Cartilage;
不同频率周期性压力对组织工程软骨的影响
Multifrequency terahertz generation in a customed aperiodically poled lithium niobate
定制非周期极化LiNbO_3中多频率THz波的产生(英文)
It can remove the interference of power supply more efficiently than the conventional one.
该方案通过跟踪周期性干扰信号的频率变化,微调采样频率,改善了自适应模板法滤波性能。
This type of racking is suitable for large quantity in short time or frequently loaded or picked material warehouse of transfer storage.
适合周期性批量作业及存取物流频率高的原料仓库或转运仓库。
By using the mean values of the periodic coefficients, the approximations of the unstable frequencies are obtained.
用周期性系数的平均值法获得了不稳定频率的近似值。
A high weathercock frequency is essential for the stability of the guidance loop.
从制导回路的稳定性角度来看，短周期振荡频率高是基本的。
Having bowel movements or menstrual periods with normal or healthy frequency.
恒常的具有正常或健康的频率的肠胃运动或月经周期的