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.
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页码：61 / 64
页数：4
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