相位调制

V型原子系统中相干布居俘获的相干相位调制研究

Study on coherent phase modulation of coherent population trapping in V-type atomic system

对于不同的应用场合，SOA对相位调制的偏振相关性要求也不同。

The requirements for polarization dependence of phase modulation are different in various applications of SOAs .

论文对基于连续相位调制（ContinuousPhaseModulation）的自适应跳频信道质量估计进行了研究。

This paper mainly focuses on channel estimation of adaptive frequency hopping communication based on CPM ( Continuous Phase Modulation ) .

这两种方案分别利用了SOA的交叉相位调制和相位调制信号解调过程中的微分作用。

The two schemes use the XPM in SOA and the demodulation of phase modulated signal respectively .

交叉相位调制对WDM系统性能的影响

Influence of Cross phase Modulation on Performance of WDM Systems

相位调制PWM开关电源原理及实现

The Principle and Realization of a Switching Power Supply by Means of the Phase Modulated PWM Technique

连续相位调制信号（ContinuousPhaseModulation）具有包络恒定、相位连续的特点，因此有较高的功率利用率和频谱利用率。

Continuous phase modulation ( CPM ) is a kind of constant-envelope digital modulation schemes with continuous phase which provides good spectral - and power-efficiency .

研究了压电涂层PMMA纤芯塑料光纤中的相位调制。

The phase modulation within piezoelectric coating PMMA core plastic optical fiber ( POF ) is demonstrated .

本文研究了光纤的色散特性、交叉相位调制效应对SC谱展宽的影响。

The dispersion characteristic of the fibers and the cross phase modulation effect on SC generation are studied .

以半导体光放大器为非线性元件的全光开关中，由于SOA中交叉增益调制和交叉相位调制并存，会导致光开关各输出端口性能有所差异。

For SOA-based all-optical switching , because cross-phase modulation and cross-gain modulation is co-exist in SOA , the properties of each output port is different .

连续相位调制（CPM）是一种恒包络调制方式。

Continuous phase modulation ( CPM ) is a kind of constant-envelope digital modulation schemes .

为实现硅基底上的光波导MZ干涉仪的相位调制，采用了声光相位调制的方法。

In order to modulate the phase of optical waveguide M-Z interferometer on silicon substrate , the method of acoustooptic phase modulation is proposed .

基于SOA附加双折射效应的交叉偏振调制，与交叉增益调制、交叉相位调制和四波混频等非线性效应一样，可以为SOA开拓出新的应用天地。

Like other nonlinear effects such as cross-gain modulation , cross-phase modulation and four-wave mixing , cross-polarization modulation has opened up a new application field of SOAs .

自相位调制对超短脉冲在准周期Fibonacci光学超晶格中传输的影响

Ultra-short Pulse Propagation through a Fibonacci Quasi-periodic Optical Superlattice Influenced by Self Phase Modulation

连续相位调制（CPM）信号是一类包络恒定、相位连续变化的调制信号。

Continuous-phase modulation ( CPM ) signal is a kind of constant envelope , continuous changed phase signal .

在通讯中调幅调频（AM/FM）信号和其他相位调制信号均可以通过对信号的相位做多项式展开，利用有限阶的多项式相位信号（Polynomialphasesignal，PPS）来近似逼近。

In communications , AM / FM signal and other Phase-Modulated signals can be expanded to the high polynomial phase signal ( PPS ) and be approximated by finite order PPS .

CPM（连续相位调制）是近年来发展很快的一种高效的调制技术。

Continuous phase modulation ( CPM ), an efficient modulation , has been developed very quickly in recent years .

本文将主要对交叉相位调制（XPM）效应的影响展开研究。

This paper will discuss the effect of Cross-phase modulation ( XPM ) .

分析了全响应连续相位调制（CPM）信号和部分响应CPM信号简化状态格状图的最小平方欧氏距离。

The minimum square Euclidean distance of the reduced state trellis is analyzed for full response CPM and partial response CPM .

基于相位调制偏振编码的QKD系统的偏振补偿技术

The Technology of Compensating for Polarization in the QKD System on Polarization States Encoded by Phase Modulation

为了对该模型进行验证，文中采用了连续相位调制技术来搭建仿真系统，并在VC++6.0环境下用C语言实现了该系统。

In order to validate the model , the technique of continuous phase modulation is applied to build the simulation system in the paper and the entire simulation system is achieved by C language under VC + + 6.0 development environment .

基于相位调制偏振态QKD系统的量子信道校正发送方案

Study on Sending after Verify Scheme in Quantum Channel for Quantum Key Distribution System Based on Polarization Coding

提出了基于PCF自相位调制效应的全光再生的方案，理论和实验上论证了其可行性。

All-optical regeneration based on self-phase modulation in PCF is proposed and the feasibility of this scheme is investigated both theoretically and experimentally .

我们研究使用连续相位调制（CPM）的系统，提供移动数据服务QPSK调制传输的远程医疗系统。

We study the use a continuous phase modulation ( CPM ) system providing mobile data service withQPSK transmission for a telemedicine system .

基于量子测量的Fock态制备和自相位调制的影响

The preparation of Fock states by quantum measurements in a Kerr media and the influence of self-phase modulation

ASE是一种线性的幅度噪声，通过自相位调制转换成相位噪声。

ASE adds linearly to the signal leading to an amplitude noise that is converted to phase noise through self-phase modulation ( SPM ) .

因此，从上世纪九十年代开始，频谱利用率高的多进制相位调制（MPSK）便成为了高速水下通信的研究热点。

So , MPSK become research hot point of high speed underwater communication , because MPSK has higher frequency validity since 1990 's.

描述了利用光纤中的交叉相位调制（XPM）效应产生单周期化脉冲的基本原理。

In this paper , principles for monocyclic pulse generation by crossed phase modulation in silicon fibers are introduced .

分别对基于半导体光放大器（SOA）的交叉相位调制（XPM）型和交叉增益调制（XGM）型波长转换器提出了改进的新方案。

Improved schemes are present for wavelength conversion based on cross phase modulation ( XPM ) and cross gain modulation ( XGM ) in SOA .

该系统采用电光晶体作为相位调制元件，在零偏置下加载调制信号，经传感头输出光强信号中含有SPR相位差。

This system use electro-optic crystal as the phase modulation device , with modulation signal in zero offset , then the output light contain the SPR phase signal .