| 基于矩阵乘法器的MP3解码优化设计 |
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| 引用本文： | 李仕专,李维涛,符天,孟宪军. 基于矩阵乘法器的MP3解码优化设计[J]. 现代电子技术, 2010, 33(22): 9-11 |
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| 作者姓名： | 李仕专 李维涛 符天 孟宪军 |
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| 作者单位： | 海南软件职业技术学院;北京天一集成科技有限公司; |
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| 基金项目： | 海南省自然科学基金资助项目 |
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| 摘 要： | 介绍了MP3解码器的工作原理,分析了各个解码环节的计算量和消耗时间。将MP3解码过程中耗时最多的子带综合滤波环节使用矩阵乘法器单元做了优化和改进,提出一种可大幅度提高MP3实时解码效率的软硬件协同设计方法,并在SoC仿真平台上得到实时验证,达到了较好的优化效果。由于SoC的设计方法比较灵活,可以根据实际需要设计硬件模块,所以该设计具有方便、灵活和可靠性高等特点,是工程实用价值较高的解码器。
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| 关 键 词： | MP3 解码器 子带综合滤波 矩阵乘法器 SoC |
Optimization of MP3 Decoder Based on Matrix Multiplier |
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| LI Shi-zhuan,LI Wei-tao,FU Tian,MENG Xian-jun. Optimization of MP3 Decoder Based on Matrix Multiplier[J]. Modern Electronic Technique, 2010, 33(22): 9-11 |
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| Authors: | LI Shi-zhuan LI Wei-tao FU Tian MENG Xian-jun |
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| Affiliation: | LI Shi-zhuan1,2,LI Wei-tao1,FU Tian1,MENG Xian-jun2 (1.Hainan Software Professional Institute,Qionghai 571400,China,2.Beijing Tianyi Integration Technology Co.Ltd.,Beijing 100089,China) |
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| Abstract: | The working principle of MP3 decoder is introduced.The computed quantity and time-consumption of each decoding link is analyzed.The sub-band synthesis filtering which would take the most time-consumption in the decoding process of MP3 was optimized and modified by using Matrix multiplier.A hardware and software co-design method which can substantially improve real-time decoding efficiency of MP3 is proposed and verified on SoC simulation platform.It achieved a better optimization effect.As SoC design method... |
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| Keywords: | MP3 decoder sub-band synthesis filtering matrix multipier SoC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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