差分相移键控

40Gb/s差分相移键控格式抗偏振模色散的性能研究

Performance Research on 40 Gb / s DPSK Format Against Polarization-mode Dispersion

基于差分相移键控的水声数据传输技术研究

Underwater Acoustic Data Transmission Based on Differential Phase Shift Keying

本文研究了一种基于自适应算法的解调差分相移键控（DPSK）信号的方法。

This paper deal with the DPSK demodulation method based on the adaptive algorithm .

差分相移键控（DPSK）调制格式在传输时具有优越的性能，对其进行波长转换研究具有重要的意义。

As a kind of modulated format with excellent transmission performance , studying the wavelength conversion of DPSK signals is significant .

论文还讨论了直接数字合成器（DDS）的FPGA实现，及在DDS基础上利用FPGA来实现差分相移键控（DPSK）调制器和解调器的设计方法。

And the paper also investigated the FPGA implement of direct digital synthesizer ( DDS ) and the design method of the difference phase shift keying ( DPSK ) modulation and demodulation based on the FPGA .

对全光码型转换和差分相移键控（DPSK）信号解调进行了实验研究。

And the results are analyzed comparatively . ( 4 ) All-optical data format conversion and differential phase-shift keying ( DPSK ) signals demodulation are experimentally studied .

差分相移键控调制格式（DPSK）作为一种新型调制格式，成为近年来高速长距离光通信技术的研究热点。

As a novel optical modulation format , differential phase-shift keying ( DPSK ) has become a hot topic in the large-capacity and long-haul optical communication technologies .

论文通过建立系统仿真平台，对各种基于差分相移键控（DPSK）的调制格式在40×40Gb／sDWDM传输系统中的性能进行了研究。

This dissertation focuses on the transmission performance evaluation of differential phase-shift keying ( DPSK ) - based modulation formats in a 40 × 40Gbit / s DWDM system .

建立了单信道40Gbit/s归零-差分相移键控码（RZ-DPSK）传输系统模型，详细地分析并比较了线性相位噪声和非线性相位噪声对系统性能的影响。

The influences of linear and nonlinear phase noise on the performance of single channel 40 Gbit / s RZ-DPSK transmission system were analyzed in detail .

弱光反馈对相干光差分相移键控系统性能的影响

Effects of weak optical feedback on the performances of coherent optical DPSK systems

光差分相移键控调制格式原理

Principle of Optical DPSK Modulation Format

钻井液连续压力波差分相移键控信号的传输特性分析

Analysis on transmission characteristics of differential phase shift keying signal of continuous pressure wave in drilling fluid channel

同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。

With the LFM pulse frame synchronization method , the performance of UWA communication system based on DPSK is apparently improved .

虚拟无线电技术正在不断的蓬勃发展，该文提出了一种基于虚拟无线电思想的二进制差分相移键控信号软件解调算法。

The technology of virtual radio is developing rapidly , a new DPSK signal software demodulation algorithm is proposed based on virtual radio .

本文讨论了弱光反馈对相干光差分相移键控系统误码率的影响。

The effects of weak optical feedback ( WOF ) on the bit error rate ( BER ) of coherent optical differential phase shift key-controll ( DPSK ) systems are presented .

实验中实现了40Gb/s差分相移键控信号的解调，解调信号消光比为14.5dB，温度控制实现了输出结果的长时间稳定，并可在相长干涉和相消干涉之间转换。

In the experiment , 40 Gb / s DPSK signal was demodulated successfully , and the extinction of the demodulated signal is 14.5 dB . With the help of temperature control , the experimental results have a long-time stability and can be switched between constructive interference and destructive one .

本文提出了一种新的差分调制方式，我们称之为相干幅度差分相移键控（CADPSK）。

The thesis presents a new differential modulation , Coherent Amplitude and Differential Phase Shift Key ( CADPSK ) .