期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
视频流媒体传输失真研究 被引量:4
1
作者 周敬利 马志龙 +1 位作者 范晔斌 陈小平 《小型微型计算机系统》 CSCD 北大核心 2006年第2期264-267,共4页
由于网络传输引起的视频流媒体质量损失(称为传输失真)是流媒体QoS中最重要的参考指标,通常只能在终端系统解码后获得.本文根据视频流媒体编解码、错误隐藏、错误扩散等理论进行分析,提出了一个视频流媒体传输失真模型,该模型可以在发... 由于网络传输引起的视频流媒体质量损失(称为传输失真)是流媒体QoS中最重要的参考指标,通常只能在终端系统解码后获得.本文根据视频流媒体编解码、错误隐藏、错误扩散等理论进行分析,提出了一个视频流媒体传输失真模型,该模型可以在发送端通过网络传输质量和视频流媒体特性参数估算视频流媒体的最终表现质量,可以为流媒体同步、控制算法提供定量的参考指标.该模型针对常见的视频流媒体处理机制进行建模,并不局限于特定的编解码格式,具有更广泛的实用价值. 展开更多
关键词 流媒体 QOS 传输-失真 错误扩散 错误隐藏 预测
下载PDF
Design of Dispersion Compensation and Nonlinear Distortion Self-compensationin Co -network Transmission Systems 被引量:1
2
作者 DANG Ming-rui, WANG Xue-qiang (Institute of Optical Fiber Communications, Chongqing University of Posts and Telecommunications, Chongqin g 400065, CHN) 《Semiconductor Photonics and Technology》 CAS 2000年第4期224-230,共7页
Dispersion and nonlinear distortion have an effect on transmission performanc es of optic al fiber transimission systems. The schemes of dispersion compensation and nonli near distortion self-compens ation in telecom-... Dispersion and nonlinear distortion have an effect on transmission performanc es of optic al fiber transimission systems. The schemes of dispersion compensation and nonli near distortion self-compens ation in telecom-CATV co-network transmission systems are reported, followed by investigation on (1) the impact of dispersion compensation fiber (DCF) on fi ber nonlinear effects with a cascade of erbium-doped fiber amplifiers (EDFAs) an d different dispersion compensation schemes, (2) the impact of the complex on th e total nonlinear distortion induced by EDFA gain tilt and the light source. As a result , dispersion compensation optimal scheme and EDFA negative gain tilt are suggest ed as a solution to dispersion compensation and the nonlinear distortion self-c ompensation. 展开更多
关键词 Dispersion compensation Nonlinear distortion Co-network EDFAs Telecom-CATV
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部