| 一种基于小波变换的自适应播放算法 |
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| 引用本文： | 李忠博,陶萄,赵胜辉,匡镜明.一种基于小波变换的自适应播放算法[J].北京理工大学学报,2008,28(10):918-922. |
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| 作者姓名： | 李忠博 陶萄 赵胜辉 匡镜明 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 针对网络传输中延时的非平稳特性,提出了一种基于小波变换的自适应播放算法. 通过小波变换将非平稳的延时序列变为多个平稳的分量,再对各平稳分量采用不同自适应速率的自回归(AR) 模型进行预测,将各个预测分量利用小波重构得到最终的端到端延时. 仿真结果表明,该算法的预测精度比传统的AR算法提高了5～14dB,比新提出的差分自回归 (DIAR) 算法提高了1.5～5.0dB.
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| 关 键 词： | 自适应播放算法 AR算法 DIAR算法 小波变换 |
| 收稿时间： | 2007/11/1 0:00:00 |
An Adaptive Playout Algorithm Based on Wavelet Transform |
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| LI Zhong-bo,TAO Tao,ZHAO Sheng-hui and KUANG Jing-ming.An Adaptive Playout Algorithm Based on Wavelet Transform[J].Journal of Beijing Institute of Technology(Natural Science Edition),2008,28(10):918-922. |
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| Authors: | LI Zhong-bo TAO Tao ZHAO Sheng-hui and KUANG Jing-ming |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | |
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| Keywords: | adaptive playout algorithm auto regressive algorithm differential auto regressive algorithm wavelet transform |
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