A New Fast Algorithm for Discrete Fractional Hadamard Transform

被引:5
|
作者
Cariow, Aleksandr [1 ]
Majorkowska-Mech, Dorota [1 ]
Paplinski, Janusz P. [1 ]
Cariowa, Galina [1 ]
机构
[1] West Pomeranian Univ Technol, Fac Comp Sci & Informat Technol, PL-70310 Szczecin, Poland
关键词
Discrete linear transforms; discrete fractional Hadamard transform; eigenvalue decomposition; fast algorithms; IMAGE ENCRYPTION;
D O I
10.1109/TCSI.2019.2893540
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
This paper proposes a new fast algorithm for calculating the discrete fractional Hadamard transform for data vectors whose size N is a power of two. A direct method for the calculation of the discrete fractional Hadamard transform requires O(N-2) multiplications, the last fast algorithm requires O(N log(2) N), while in the proposed algorithm the number of multiplications is reduced to O(N).
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页码:2584 / 2592
页数:9
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