查询词典 modulator-demodulator

An integral expression for the time domain output response of traveling wave electrooptic phase modulator is derived by using the scalar wave equation and Fourier transform technique.

从标量波动方程出发，采用傅里叶变换的方法，导出了行波电光相位调制器的时间域输出响应的计算公式。

This dissertation has studied various architectures of Sigma-Delta modulator systematically. According to power dissipation, stability and circuit implementation, a 2-2 cascade architecture is introduced. Oversampling ratio is 32. The attenuation factors of each integrator and interstage coefficients are obtained from behavioral simulation.

本论文系统地研究了∑A调制器的各种体系结构，根据功耗、稳定性以及电路实现等方面综合考虑，∑A调制器采用级联2—2结构，过采样比为32，并通过行为级仿真确定了积分器的增益衰减因子及级间耦合系数。

The modulator could make different effect on fermentation, kerosene and triton-XlOO has little effect on fermentation, but span-20 and J3 -ionone could enhance the productivity of J3 -carotene, significantly. The content of 3 -carotene in the medium reach 2~3 times of the control experiments by adding Ig/L span-20.The effect of the mycelial morphology on producing 3 -carotene of Blakeslea tripora was also investigated.

在研究前体物和促进剂对p一胡萝卜素生产影响时发现：复合前体物添加可以提高产率到2.4倍；研究了不同小分子效应物对三抱布拉氏霉菌合成p一胡萝卜素的影响，结果表明：煤油、trinton一X 100对菌体中p一胡萝卜素含量影响较小，sPan一20可以提高卜胡萝卜素的产量，其中添加sPan一20可使p一胡萝卜素产量提高到2一3倍。

Laser printers by laser, acousto-optic modulator, high-frequency drivers, scanners, desynchronizers and acoustooptic, etc., it is to interface circuits for the binary lattice information modulation in laser beam, scan-to-peripherin-seadweed.

激平打印机是由激平器、声平调制器、高频驱动、扫描器、同步器及平偏转器等构不败，其功用是把接口电路送来的二进制不面阵陈闻调制在激平束上，之后扫描到感平体上。

This method also allow us to select the most efficient way from the bulk optical systems and available recoding methods, i.e., identifying the space bandwidth product of the input signal, the minimum size of lens apertures, the sample space and total sample number of CCD and spatial light modulator, the need of magnification before the signal passes through a SLM or when the signal reaches the camera.

通过该方法可以确定合适的加密系统和光学器件，例如输入信号的空间带宽积、变换透镜的最小孔径、空间光调制器的分辨率和像素大小、CCD的分辨率和像素大小以及入射到空间光调制器和CCD靶面上光场所需的放大倍数。

Liquid crystal spatial light modulator is the key element in optical information processing, which is especially suitable to be applied in the equipment of the optical pattern recognition.

液晶空间光调制器是构成实时光学信息处理、光计算和光学神经网络等系统的基本构造单元，在信息光学研究中发挥着重要作用并有着广泛的应用。

The experiment results show that the electro-optic modulator has fine linearity and high sensitivity.

实验结果表明：该电光调制器具有良好的线性和较高的灵敏度。

It is necessary to study and improve the modulation characteristics of Liquid Crystal Modulator because of its wide application.

作为一种用途广泛的电光器件，研究并改善液晶调制器的调制特性具有重要意义。

At last, a low-voltage PZT phase modulator is developed, and its nature is studied.

第四章为了将 PSDSPI 技术推广到工业领域，研究了它的应用。

The stability of system and transmission function of the DC amplifier using a magnetic modulator is mainly discussed in this paper, and the compensation method and conditions of the stableness of the system are given.

分析了磁调制式直流放大器的传递函数，对系统的稳定性进行了讨论，给出了系统稳定应满足的条件，并介绍了保证系统稳定的补偿方法。

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。