本文介绍了光同步数字系列的基本概念、特点及其与PDH 的比较，并简要介绍了目前商用SDH传送设备及其组网情况。
This paper introduces the basic concept and features of SDH as compared with PDH. The available SDH transport equipment and its networking are also briefly introduced.
通用成帧协议（GFP）不仅是光同步数字传输网上的传输协议，而且是光传输网上的新型数据包传输协议，它具有简单、多协议适配等优点。
Generic framing procedure(GFP) is a new brand of data-packet transmitting protocol on synchronous digital hierarchy(SDH), as well as on optical transport network(OTN).
近年来，科学家们利用大量的粒子加速器或者同步加速器来产生更大的辐射剂量，从而不断地提升X光射线的能量。
In recent years, scientists have been scaling up the power of the X-ray, using massive particle accelerators or synchrotrons to deliver much larger radiation doses.
通过将激光和光梳某个梳齿同步，制作者可以使得其他梳齿变得同样稳定。
By synchronizing one of the optical teeth with the clock laser, atomic clockmakers force the other teeth to become equally stable.
光，尤其是明亮的光，被认为是最有力的生理节律的同步装置。
Light, particularly bright light, is believed to be the most powerful synchronizer of circadian rhythms.
运用光弹性理论及测试技术，对抽油机用新型圆弧齿同步带的应力分布状态进行了光弹性实验研究。
The authors, by photoelastic technique, make an experimental investigation in the stress distribution on the new type circular-arc-teeth synchronous belt.
用同步光传输技术实现了多通道数据传输卡。
The multichannel data transmission card is designed and implemented by synchronous optical transmission technique.
采用同步光传输技术，设计和实现了用于高速数据可靠传输的多通道数据传输卡。
A multi channel data transmission card has been designed and implemented using synchronous optical transmission technique.
该系统主要由分光系统、CCD传感器、光脉冲同步信号发生器、数据采集卡及计算机等部分组成。
The system mainly consists of a beam-splitting system, a linear CCD, a pulse laser synchronous signal generator, a sampling data card and a computer.
数值模拟表明，无论是注入光的对称耦合驱动控制还是非对称耦合驱动控制，该方法都能有效地使混沌系统同步。
Numerical simulations show that by this method chaotic synchronization can be achieved effectively no matter whether or not the coupling driving control of the injection lights is symmetrical.
这种测量方法的特点在于采用红外光信号，它一方面作为参考变量进行同步测量，另一方面还作为传输数据的通道。
The point of this measurement was making use of infrared signal, on one hand which was the reference variable, on the other hand which was the channel for the data.
研究结果对非相干光反馈与非相干光注入激光混沌同步保密通信系统的设计具有重要参考价值。
The results have significant reference value to design of the chaotic synchronization secure communication system based on incoherent optical feedback and incoherent optical injection.
第三代同步辐射光源，尤其是由波荡器引出的同步辐射光，具有极高的功率密度。
The advanced photon source, especially the synchrotron radiation photon exited from undulator is equipped with extremely high power density.
设计要求从同步光中尽可能不失真地分离出可见光。
The design aims at extracting the visible light from synchrotron radiation without distortion.
相干光反馈同步系统又分为：完全同步系统和强注入同步系统。
Coherent optical feedback synchronization system can be divided into two categories: complete synchronization and injection-locking synchronization.
因而基于硅双结色敏器件的光功率、波长同步测量系统有着广阔的应用前景。
So the light power and wavelength synchrometer system using dual junction silicon color sensor has a hopeful future.
结合工程应用的实例，介绍了采用密集波分复用系统光监控波道传送同步信号的方法。
Combined with the example of engineering application, it introduces the method of transporting synchronization signal through optical supervisory channel of DWDM system.
它主要由光学发动机、光路系统、数据采集和信号同步控制系统及其它辅助系统组成。
The facility is mainly composed of optical-engine, light-path system, data collection and signal synchronization control system.
最后简单介绍同步光时分多路应用。
Finally, it briefly explains the optical time division multiplexing.
偏振-同步荧光法能有效地抑制同步扫描过程中散射光总水平的影响，外加磁场效应能有效地抑制散射光的波动。
The total level of scattered light intensity can be reduced by polarization technique, while the undulation of scattered light can be suppressed by magnetic field.
只要对方车辆具备自动会车变光功能，且在正常工作状态下，安装方均可与对方车辆同步变光。
When two cars meet, if the opposite car also has the function as HIC and the function is in work, they can switch the light at the same time.
分析结果表明，基于修正素数码的光硬限幅器同步系统的误码性能优于无光硬限幅器系统的误码性能。
Numerical results show that the performance of systems with optical hard limiter is superior to that without optical hard limiter.
本文介绍了作者研制的用于医用X光高清晰度电视设备的同步机。
In this paper, the authors introduce their design and manufacture of synchros which are used for medical X-ray high definition TV facilities.
断丝自停采用同步跟踪式红外光电控制，抗外界光干扰，耗电少但检测距离远。
The broken-end stop motion is controlled by synchronized tracking infrared photoelectric system capable of long-distance monitoring with less power and resisting external light interference.
并且信号光光谱越宽，光参量放大间的时间同步抖动对其增益影响越严重；
The broader signal spectrum will aggravate the influence of jitter on parametric gain.
目前还没有可实用的光缓存，我们旨在通过减慢光速来实现信号的存储或者同步。
Until now, there is no practical optical buffer. In our case, we try to realize data storage or packet synchronization by slowing down the group velocity of light.
设计并实现了一种用硅双结色敏器件作为探测器，单片机作为控制器，PC作为处理器和显示器的光功率、波长同步测量系统。
A system of measuring light power and wavelength is designed and fabricated, using Silicon Color Sensor with double PN junction as detector, single chip processor as controller and PC as processor.
设计并实现了一种用硅双结色敏器件作为探测器，单片机作为控制器，PC作为处理器和显示器的光功率、波长同步测量系统。
A system of measuring light power and wavelength is designed and fabricated, using Silicon Color Sensor with double PN junction as detector, single chip processor as controller and PC as processor.
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