有平衡接收机的DPSK系统仿真中的误码率精确计算
Accurate BER Estimate in Simulation of DPSK Transmission Systems with Balanced Receiver
摘要
本文对DPSK系统下光平衡接收机的噪声特性作了全面的研究，提出了基于Karhunen-Loève（KL）变换下的接收机模型，还包括主要传输损伤，以及误码率估计的数值计算方法。之后得到判决电流的统计规律，它与蒙特卡洛仿真精确吻合，所以此分析结果对误码率的准确估计是足够可靠的。经过耗时的蒙特卡洛法误码计算的验证后，本文采用提出的模型进行了背靠背仿真，并核实了DPSK对传统的OOK系统有3dB的优势。Abstract
A study of the noise characteristic in optical balanced receivers in differential phase shift keying systems is performed. The receiver model based on Karhunne-Loève transform.The statistics of the decision current is obtained which shows exact agreement with that of Monte-Carlo simulation. After validated by the time consuming Monte-Carlo error count, the proposed model is adopted in a back-to-back simulation and the 3dB advantage of DPSK over traditional on-off keing is clearly verified 关键词
光纤通信技术/比特率（BER）/差分相移键控（DPSK）/数值仿真/密集波分复用（DWDM）Key words
Optical fiber communication technology/bit error ratio/differential phase shift keying/numerical simulation/dense wavelength division multiplexing引用本文复制引用
顾畹仪,张健,张慧剑.有平衡接收机的DPSK系统仿真中的误码率精确计算[EB/OL].(2008-01-30)[2025-12-13].http://www.paper.edu.cn/releasepaper/content/200801-851.学科分类
光电子技术/通信
评论