码型

介绍了一种带USB接口的光的155Mb/s码型发生器。

An optical 155Mb / s pulse pattern generator with USB interface was introduced .

通过数值模拟，发现必须合理选取SOA的注入电流，从而消除幅度调制效应和码型效应的影响。

Through numerical simulating , it was observed that the optimum injected electric current should be chosen to minimize amplitude modulating effect and code pattern effect .

基于SOA的全光码型变换的理论研究

Simulating of all - optical data format conversion based on SOA

该方法能提高原捕错译码器的纠错能力，可以识别C（x）中的码型（对偶码和非对偶码）。

The new method can improve error-correcting capability of old Error-Trapping Decoding , and identify form of code C.

涉及的码型有RS码BCH码等。

It uses RS code , BCH code and so on .

首先模拟了高斯脉冲和脉冲序列在SOA中的传输，得出了码型效应。

First , we simulate the transfer process of Gaussian pulse and pulse sequence in SOA , and analysis BERT effect .

PMD对不同线路码型高速光纤通信系统影响的研究

Study of the PMD Impact on Optical Fiber Systems with Different Data Formats

光通信系统中前向纠错（FEC）码型的理论分析

Theoretical Analyses on the FEC Code Type for Optical Communication Systems

Ames试验也说明辐照淀粉不诱发DNA中碱基对的置换型和移码型突变。

Ames test showed that both of the base pair transversion and frameshift mutant in DNA was not induced by irradiated starch .

本文基于空间激光通信系统的背景，首先介绍了码型发生器和FPGA技术的应用及发展现状。

This paper based on the background of space laser communication system . First of all , introduces application and development of code pattern generator and FPGA technology .

如何从码型恶化的数据信号中提取时钟和对恶化的数据信号进行3R全光再生是国际上研究的热点。

Clock recovery and 3R regeneration from degraded signals are researched in many laboratories .

40Gb/sDQPSK调制码型技术的研究

Research on the Technology of 40-Gb / s DQPSK Modulation Formats

基于LiNbO3调制器高速光调制码型的研究

Research of High Speed Optical Modulation Formats Based on LiNbO_3 Modulators

此外，虽然本方案主要针对的是RS（31,15）码型，但在设计中也考虑到RS码的参数可配置性。

Although this scheme lays more emphasis on RS ( 31,15 ), it also considers the parameters ' programmability of RS code , which can expand its applications .

基于LiNbO3光波导调制器高速光码型调制技术的比较

Comparisons of High Speed Optical Modulation Formats Using LiNbO_3 Optical Waveguide Modulators

结果表明，OOK到PSK的码型转换可以通过线形信号处理的方式实现。

It is shown that the OOK-to-PSK conversion can be achieved through a linear signal processing .

通过优化ASK信道的功率，我们使用计算机仿真成功展示了ASK和DPSK信号到DPASK信号的码型组合。

By optimizing the power of the ASK channel , formats combination of ASK and DPSK to DPASK signal is successfully demonstrated by computational simulation .

码型转换是实现非归零（NRZ）信号全光时钟恢复的关键技术。

Pattern conversion is the key technology for all-optical clock recovery from non-return-to-zero ( NRZ ) signal .

40Gb／s光纤传输系统中不同码型特性研究

Study on Characteristics of Different Formats in 40Gb / s Optical Fiber Communication System

文章介绍了一种基于DSP技术的地面测井系统的数据采集方案，可以实现高速的数据采集和适应多种传输码型。

This text introduces a kind of data collection project of the logging well system according to DSP technology , which can carry out high speed of the data collect in and adapt to various transmission code types .

为了便于长距离传输，选用的传输码型为HDB3码。

For the sake of long distance transfer , we select HDB3 as the transfer code .

为了改善基于半导体光放大器（SOA）中交叉偏振调制效应（CPM）的波长转换器的转换信号码型效应，对交叉偏振调制半导体光放大器波长转换器的工作原理进行了分析；

In order to weaken the bit format effect of converted signal of wavelength converter based on cross-polarization-modulation in semiconductor optical amplifier ( CPM-SOA ), the principle of CPM-SOA wavelength converter is analyzed ;

当采用直扩码型为理想随机二进序列时，获得了简单明晰的表达式，并与BPSK调制的同一系统作了比较。

When an ideal random binary sequence is adopted , a simple and explicit expression is derived and compared with one in BPSK modulation .

该码型具有和原始AMI码类似的功率谱，尽管其编码效率不高，其快速同步捕获的特性可以避免数据的丢失，提高了数据的可靠性。

This type of code has the similar power spectrum to the original AMI code , and though its code efficiency decreases , rapid synchronization will avoid losing data and increase the credibility of data .

对OSC单元单板实现的光监控信道信号处理部分的功能进行设计，包括光电信号的转换与码型变换。

The function of the signal processing unit of the OSC integrated circuit board was designed , including optical-to-electric signal conversion and code conversion .

SOA不仅可以应用于在线放大和波分复用（WDM）传输，还可以用于光开关、码型变换、调制器、3R再生、波长转换器等功能性器件。

SOAs can be used as inline amplifiers and WDM transmission . Moreover , SOAs have many functional applications including optical switches , data format conversion , modulators , 3R regeneration and wavelength converters .

一种新Super-FEC码型的设计与仿真研究

Design and Simulation Study of New Super - FEC Code

遥测地震仪电线数字传输常采用的传输码型有：AMI、Manchester－Ⅱ、Miller、FSK等。教传电缆的特性和传输码型都是决定传输速率的重要因素。

The code applied in telemetry system usually are : AMl , Manchester - II Miller and FSK etc Both the characteristics of cable and the code are key factors to determine the transmission rate .

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 .

这对于研究、设计高速光纤通信系统时选择合适的码型和RZ码的占空比，具有重要的参考意义。

This is very important and provides referrence for choosing suitable code type and pulse length ratio when a high-speed optical fiber communication system is studied and designed .