DocumentCode
883784
Title
Number of multiplications necessary to compute length-2n two-dimensional discrete Hartley transform DHT (2n; 2)
Author
Ma, Wann-Jiun
Author_Institution
Dept. of Electr. & Electron. Eng., South China Univ. of Technol., China
Volume
28
Issue
5
fYear
1992
Firstpage
480
Lastpage
482
Abstract
The multiplicative complexity of the two-dimensional discrete Hartley transform (2D DHT) of size 2n*2n, where n is a positive integer, is determined. The method of deviation is based on linear congruences and a ring structure. The minimal number of real multiplications necessary to compute a length-2n two-dimensional discrete Hartley transform over the field Q of rational numbers is 22n+11-6(n-1)2n-8. DHT (2n; 2) has the same multiplicative complexity as a corresponding real data 2D-DFT.
Keywords
computational complexity; signal processing; transforms; 2D DHT; linear congruences; multiplicative complexity; ring structure; two-dimensional discrete Hartley transform;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19920303
Filename
126449
Link To Document