查询词典 modulation

The phase matching condition isprovided by the self phase modulation and cross phase modulation induced bythe pump pulse.

在实验中我们发现四波混频产生的边带与泵浦波的偏振方向相垂直，同时还观察到该现象具有明显的阈值性。

The simulation results indicate that adjusting pump power properly can control transient effect, and increasing modulation frequency can weaken cross modulation, and decreasing frequency chirp of LD or enhancing the input power of signals can improve intermodulation distortion.

仿真结果表明，调整泵浦功率值可抑制瞬态效应，提高调制频率可使串话减弱，减小激光器的频率啁啾或增大EDFA的输入光功率都可改善IM2。

When the input optical power is comparable with the saturated power of the semiconductor optical amplifier,SOA has a large nonlinearity,including self phase modulation and cross phase modulation.

对于半导体光放大器，当输入光功率和SOA的饱和功率可比拟时，SOA表现出较强的非线性效应，包括自相位调制和交叉相位调制。

The modulation effect of Zn2+ on IATP belongs to allosteric modulation and may be achieved by changing the affinity of ligand-receptor.

结论Zn2+对ATP-激活电流调制效应可能是通过改变配体和受体的亲和力而实现的变构调制。

In asynchronous transmission,the unit of modulation rate corresponding to one unit interval per second; that is, if the duration of the unit interval is 20 milliseconds , the modulation rate is 50 bauds

异步传输中调制速率的单位，相当于每秒一个单位间

A threshold adjustment algorithm qualifies candidate erasures based on a detector error filter output as well as modulation code constraint success/failure information, in particular parity check or failure as current modulation codes in disk drive applications use parity checks.

阈值调节算法根据检测器错误滤波输出和调制码限制的成功/失败信息来考核候选擦除，尤其是，作为在盘驱动器应用中的当前的调制码的奇偶校验或失败使用奇偶校验。

In this paper, for the first time, the impact of the noise frequency-modulated signal to a wide band linear frequency modulation matched filter is studied for different modulation noise variance and bandwidth.

研究了噪声调频信号中调制噪声方差及带宽的选择对宽带线性调频匹配滤波器的影响。

Using time frequency analysis and image processing the modulation of linear frequency-modulated signal is analyzed and using relatively non-ambiguity phase revaluation technique, the modulation identification of phase-coded signal is also studied.

脉内调制特征中采用了时频分析方法和图像处理的方法分析了线性调频信号，采用相对相位无模糊的方法分析了相位编码信号。

OFDM is actually one kind of multi-carrier modulation .and the main idea of OFDM is Channel will be divided into several subchannels orthogonal,and then turn High-speed data signals into parallel low-speed data-flow , modulation in each of the subchannels on transmission.

OFDM技术实际上是多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。

The modulation port is implemented as a differential input, allowing the modulation control voltage and laser outputs to use different grounds.

调整港口实行差额作为投入，使电压调节和控制激光输出用不同的理由。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。