DocumentCode
1111661
Title
Further results in Walsh domain filtering
Author
Gerheim, Albert P. ; Stoughton, John W.
Author_Institution
Raytheon Company, Portsmouth, RI
Volume
35
Issue
3
fYear
1987
fDate
3/1/1987 12:00:00 AM
Firstpage
394
Lastpage
397
Abstract
Zarowski and Yunik [1] demonstrated that an FIR filter can be realized with fewer multiplications in the fast Walsh transform (FWT) domain than in the fast Fourier transform (FFT) domain for some transform lengths. This correspondence investigates the symmetry and sparseness of the Walsh gain matrices. An efficient sparse matrix algorithm is used to calculate the Walsh gain matrix.
Keywords
Acoustic signal processing; Fast Fourier transforms; Filtering; Finite impulse response filter; Frequency response; Signal processing algorithms; Sparse matrices; Speech processing; Underwater acoustics; Underwater vehicles;
fLanguage
English
Journal_Title
Acoustics, Speech and Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
0096-3518
Type
jour
DOI
10.1109/TASSP.1987.1165141
Filename
1165141
Link To Document