【作者】 刘磊；

【导师】 张淑娥； 赵国君；

【作者基本信息】 华北电力大学（河北） ， 电子与通信工程， 2008， 硕士

【摘要】 在DWDM通信网络系统中,由于外在原因导致系统出现接收端光功率降低,信噪比下降,影响到网络的稳定性。本文通过理论技术分析,结合北京网通骨干传输网的实际工程建设,以华为OptiX BWS 1600Gbit/s的密集波分设备为研究基础,通过增加APE和时钟保护等方面的改进措施,使设备可自动调节各通道的发送端光功率。这样,可以在终端的控制系统的操作平台上对相应的一些设备,板卡等功能做出相应调节,在最短的时间内,使系统恢复到最佳接收。本文给出了APE技术使用前后的性能,结果表明增加APE功能是提高网络稳定性的重要方法。本文还给出了几种能够保障业务需要的时钟测试方法。更多还原

【Abstract】 In the DWDM communication network systems, it occurs to the system that both optical power and SNR of the receiver are decreased due to external reasons, thus the stability of the network are influenced. Through theoretical and technical analysis, taking the equipment of OptiX BWS 1600Gbit/s DWDM created by Huawei as research foundation, combined with the practical project construction of the backbone transmission network of Beijing Netcom, this paper presents some measures such as increasing APE and clock protection, which enables the equipment to regulate the optical power of each channel sender automatically. In this way, we can make corresponding regulations according to equipment, integrated circuit board etc which have different functions under the operation platform of control system of terminal so as to make the system recover to the optimal reception in the shortest time. This paper compared the performance of using APE technology with that of not using APE technology, the result shows that adopting the function of APE is an important approach to enhance the stability of the network. This paper also has given several methods of testing clock which are able to guarantee the need of business.更多还原