On fast algorithms for computing the inverse modified discrete cosine transform

被引：16

作者：

Fan, YH ^{[1
]}

Madisetti, VK ^{[1
]}

Mersereau, RM ^{[1
]}

机构：

[1] Georgia Inst Technol, Ctr Signal & Image Proc Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

IEEE SIGNAL PROCESSING LETTERS | 1999年 / 6卷 / 03期

关键词：

audio coding; discrete cosine transform; discrete Hartley transform; discrete transform; error analysis; quantization; signal reconstruction;

D O I：

10.1109/97.744625

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Two new fast algorithms for computing the inverse modified discrete cosine transform (IMDCT) as used in the adaptive spectral entropy coder (ASPEC) [2] are proposed. A fixed-point error analysis is presented to determine the number of significant bits required for fixed-point implementations.

引用

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页码：61 / 64

页数：4

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