Realization of Second-Order Structure of Recursive Algorithm for Discrete Cosine Transform

被引：0
|
作者：
Pragati Dahiya
Priyanka Jain
机构：
[1] Delhi Technological University,Department of Electronic and Communication Engineering
来源：
Circuits, Systems, and Signal Processing | 2019年 / 38卷
关键词：
Discrete cosine transform (DCT); Karhunen–Loeve transform (KLT); Infinite impulse response (IIR)-recursive filter structure; Very large-scale integrated circuits (VLSI);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A computational and hardware-efficient second-order infinite impulse response filter structure is proposed in this paper. It can compute discrete cosine transform (DCT) with improved processing speed and is valid for N = 2r, where N is the length of the input sequence and r > 1. A new algorithm is also proposed in this paper which is an improvement over previously reported algorithms in the literature. The proposed algorithm reduces the total number of real multiplications and additions in comparison with the existing algorithms. Using the suggested algorithm, computational cycles required to compute a DCT coefficient are less which further reduces the truncation error while processing a long length of input data.
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页码：791 / 804
页数：13
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