教師資料查詢 | 類別: 期刊論文 | 教師: 黃連進 Hwang Lien-jinn (瀏覽個人網頁)

標題:Fast-Integer Optimization for WMA Compatible Decoder on Embedded System without FPU
學年97
學期1
出版(發表)日期2008/12/01
作品名稱Fast-Integer Optimization for WMA Compatible Decoder on Embedded System without FPU
作品名稱(其他語言)無FPU之嵌入式系統WMA相容解碼器之快速整數最佳化設計
著者Hwang, Lain-jinn; Shih, Chien-chou; Chen, Wei; Kuo, I-ting
單位淡江大學資訊工程系
出版者淡江大學
著錄名稱、卷期、頁數淡江理工學刊=Tamkang Journal of Science and Engineering 11(4), pp.375-386
摘要This paper presents a general software optimization technique which enables an embedded system to playWindows Media Audio (WMA) fluently without the support of floating point unit (FPU). We employ fixed-point arithmetic operations, instead of floating-point, to optimize the computational overhead during the audio decoding process. Thus the proposed performance improvements by programming in C language are useful for the implementation of the real-timeWMAcompatible decoder on ARM920T based embedded system. This work achieved performance increase by reducing the CPU usage rate from 100% to 45% with great precision on the average around 1-bit error.
關鍵字Ebedded Sstem;Foating Pint;Fxed-point;WMA
語言英文
ISSN1560-6686
期刊性質國內
收錄於EI;
產學合作
通訊作者Shih, Chien-chou
審稿制度
國別中華民國
公開徵稿
出版型式,電子版,紙本
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