J4 ›› 2006, Vol. 28 ›› Issue (11): 37-41.
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李建[1] 别红霞[1,2]
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摘要：
随着多媒体业务的发展，基于无线网络的视频传输备受关注，但无线网络的发展由于带宽受限、误码高而受到了制约。本文基于H．263＋提出了一种抗干扰机制来提高视频信号的健壮性，同时并不引入额外带宽负担，最后采用ITU-T的差错模型仿真WCDMA信道来检验抗干扰性能。实验结果表明，采用该方法的重构图像的主客观质量都有很
关键词: 抗干扰 差错掩盖 同步 差错检测 无线网络
Abstract:
With the development of multimedia services, video transmission over wireless networks for its limited bandwidth and high bit-error rate has received much attention recently. In the paper, based on H. 263＋, we present a method to improve video robustness without adding up the bandwidth burden. Error patterns are employed to simulate WCDMA channels to check out the error resilience performances. Simulation results show that both the subjective and o bjective quality of the reconstructed images get a remarkable improvement,even up to 2db PSNR improvement.
Key words: error resilient, error concealment, resynehronization, error detection, wireless network
李建[1] 别红霞[1,2]. H．263在无线信道上传输的抗干扰机制[J]. J4, 2006, 28(11): 37-41.
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链接本文: http://joces.nudt.edu.cn/CN/
http://joces.nudt.edu.cn/CN/Y2006/V28/I11/37
