网络丢包对SDI信号IP化传输链路影响评价研究与实现  

Research and Implementation of Impact Evaluation of Network Packet Loss on IP-based Transmission Link for SDI Signal

作　　者：王红胜 佘方毅 徐超 Wang Hongsheng;She Fangyi;Xu Chao(Academy of Broadcasting Science,NRTA,Beijing 100866,China)

机构地区：[1]国家广播电视总局广播电视科学研究院,北京100866

出　　处：《广播与电视技术》2021年第2期72-77,共6页Radio & TV Broadcast Engineering

基　　金：广播电视科学研究院2020年基本科研业务费项目(项目编号:JBKY2020022)资助。

摘　　要：本文搭建了SDI信号IP化传输模拟仿真链路,通过输入不同的高清测试图像序列,基于固定概率丢包和周期固定丢包两种典型的丢包模型,利用图像质量评价的客观和主观评价指标对不同丢包概率下的SDI输出序列进行分析比对,研究了网络丢包对SDI信号IP化传输链路特性的影响特性。This paper builds simulation link of IP-based transmission for SDI signal.By inputting different HD test image sequences,and based on two typical packet loss models of fixed probability packet loss and periodic fixed packet loss,the paper analyzes and compares SDI output sequences under different packet loss probabilities by using objective and subjective evaluation indicators for image quality evaluation,and studies the influence of network packet loss on characteristics of SDI signal which is transmitted by IP link.

关 键 词：网络丢包 SDI信号 IP化 

分 类 号：TP306[自动化与计算机技术—计算机系统结构]