查询词典 modulation

The phase modulation characteristics of Liquid Crystal Spatial Light Modulator and its applications are investigated in this thesis.

本论文研究了向列型液晶空间光调制器的相位调制特性及其应用。

First, a series of liquid crystal polymers with different amounts of cholesterol mesogens and ferroelectric property are synthesized in this research. The structures of the compound synthesized are confirmed by IR and 1H-NMR spectroscopy. The thermal properties are characterized by DSC, POM. In this research, the 3-D molecular arrangement of molecular were measured by Polarization Modulation-Attenuated Total Reflection-Flourier Transform Infrared spectroscopy (PM-ATR-FTIR).

中文摘要本研究分成两个部分，第一部分为合成铁电性液晶及胆固醇液晶，以FTIR及 1H-NMR来鉴定化合物的结构，并以POM观察其液晶特有的光学纹路，用DSC来观察矽氧烷类液晶的液晶相的热转移温度并利用偏光-衰减全反射-傅立叶转换红外线光谱仪(Polarization Modulation-Attenuated Total Reflection – Flourier Transform Infrared)来探讨矽氧烷类液晶分子的三度空间排列。

In 2005, we have fulfilled the improved experiment, which included a new cave laboratory with more homogeneous gravitational background, a modified pendulum with a quadrupole moment of mass distribution to further quiet the contribution from the local gravity gradients, a high vacuum chamber to suppress the disturbance from the residual air current, the synchronous monitors of the rotating period of the turntable and temperature, the modulation experiment of background magnetic field, and so on.

新的实验中进一步克服了2002年实验中的背景引力梯度的影响，同时还进行了温度、回转周期稳定性的同步检测和磁场影响的调制实验，以及数据处理方法的研究，进一步提高了实验的置信水平。

A novel all-optical method for ultra-wideband monocycle pulses generation based on cross polarization modulation effect in highly nonlinear photonic crystal fiber is proposed and demonstrated.

本文提出并用实验室验证了一种新的全光的基于高非线性光子晶体光纤交叉偏振调制效应产生超宽带单周期脉冲的方法。

Objective: To investigate the change of intestinal motility after abdominal surgical manipulation and the modulation effect of KangYanLing.

目的：探讨腹部手术对小肠运动功能的影响及中药抗炎灵的调理作用。

In order to satisfy the future requirements of fixed broadband wireless Access systems for high data-rate and high frequency efficiency, technical renovation on the physical layer and control layer is demanded. The paper analyzes relevant technologies sUCh as the high spectrum utilization antenna, robust time-delay extension modulation, equalization and encoding, highly efficient multi-address access and adaptive linking.

为了满足未来固定宽带无线接入系统高数据速率传输及高频谱利用率的要求，就需要在物理层和媒体访问控制层进行技术上的革新，所涉及的关键技术包括：高频谱利用率的天线系统、具有时延扩展鲁棒性的调制方式、均衡与编码技术、高效的多址接入技术、自适应链路技术等。

The paper analyzes relevant technologies such as the high spectrum utilization antenna, robust time-delay extension modulation, equalization and encoding, highly efficient multi-address access and adaptive linking.

为了满足未来固定宽带无线接入系统高数据速率传输及高频谱利用率的要求，就需要在物理层和媒体访问控制层进行技术上的革新，所涉及的关键技术包括：高频谱利用率的天线系统、具有时延扩展鲁棒性的调制方式、均衡与编码技术、高效的多址接入技术、自适应链路技术等。

It is a type of multi-carrier modulation and a technology of multiplex.

它是一种多载波调制技术，同时也是一种复用技术。

ABSTRACT Using phase modulation of Binary Optics , high density Wavelength Division Multiplexer optical communication system is...

本文主要运用二元光学位相调制这一全新的思路，对光通信密集波分复用系统进行研究。

White noise generator, can be amplitude modulation, frequency, phase.

白噪声发生器，可以调制幅值，频率，相位。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。