调制的

The most important of the most commonly used analog modulation is the sine wave as a carrier perspective modulation and amplitude modulation.

最常用最重要的模拟调制方式是用正弦波作为载波的幅度调制和角度调制。

After theoretically modeling,experiments were carried out to measure a CW laser modulation spectrum generated by a diode laser and an EOM device with the proposed method.

本文在理论建模与分析的基础上，利用该方法对半导体激光器出射激光经电光调制器调制产生的调制光谱进行了测量，测量结果与F-P 干涉仪测量结果一致，验证了该方法的可行性。

After theoretically modeling, experiments were carried out to measure a CW laser modulation spectrum generated by a diode laser and an EOM device with the proposed method. Compared with the measuring results with F-P interferometer, experimental results show the feasibility of an optical beat frequency method.

本文在理论建模与分析的基础上，利用该方法对半导体激光器出射激光经电光调制器调制产生的调制光谱进行了测量，测量结果与F-P干涉仪测量结果一致，验证了该方法的可行性。

We also discuss the effects of the reflection coefficient on the bandwidth and the half-length voltage.

同时，讨论了定向耦合器调制器的调制性能，计算了归一化输出光强随频率、调制电压以及终端反射系数的变化规律。

Its output current can be continuously adjusted from zero to two hundred milliamperes and its stability reaches 1.5×10-5. The variation of the output current is less than 1μA when its operation time is longer than 12h. The modulation of frequency and intensity of optical wave in the laser interferometry can be achieved by the modulated current (100kHz～300kHz) input, whose modulation depth is continuously adjustable from zero to one hundred milliampere.

该电路的直流稳定度高达1.5×10-5，输出电流在0～200mA内连续可调，长时间工作（12h以上）电流变化小于1μA；在直流基础上注入100kHz～300kHz的调制电流，其调制深度为0～100mA连续可调，可实现在激光干涉测量中对光波频率和光波强度的调制。

The inventive light control elements contain a mesogenic control medium that exists in an optically isotropic phase when the light control elements are in operation.

根据本发明的光调制元件包含介晶调制介质，它在光调制元件的操作期间处于光学各向同性相。

Moreover, combining with dynamic trajectory simulation of different kinds of aircraft with atmosphere perturbance models, a software package of radar signatures prediction and analysis is presented.

二、分析了活动部件周期调制特征产生机理和频谱结构特点，并通过建立通用仿真模型描述直升机旋翼，螺旋桨以及喷气引擎压缩叶片的动态电磁散射现象；针对活动部件周期调制，阐述了自相关特征提取和子波包特征空间变换的基本原理；并利用模糊模式比较完成基于空中目标活动部件周期调制特征的分类识别试验，给出识别结果。

In one where the modulating signal is applied across a varactor to vary the oscillator frequency , the deviation produced is a function of the modulating signal amplitude only.

在直接FM调制器中（也就是，调制信号加到变容二极管上来改变振荡频率），产生的频偏只是调制信号幅度的函数。

The modulation that function of modulation of in-house AM, FM, PM, FSK makes the instrument can go to the lavatory is undee, and need not sole modulation source.

内部AM、FM、PM、FSK调制性能使仪器能够便利的调制波形，而无需零丁的调制源。

In this paper, the design of the cosine modulated filter banks with perfect reconstruction are studied in details with emphasis on the design of biorthogonal cosine modulated filter banks and oversampled cosine modulated filter banks.

本论文主要讨论了完全重构的余弦调制滤波器组设计方法，其中的重点是完全重构低延迟双正交余弦调制滤波器组和过采样余弦调制滤波器组。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。