DocumentCode
2165788
Title
An improvement to the computational efficiency of a wideband FFT beamformer [sonar]
Author
Follett, Randolph F. ; Ingels, Franklin M.
Author_Institution
Dept. of Electr. Eng., Mississippi State Univ., MS, USA
fYear
1989
fDate
26-28 Mar 1989
Firstpage
395
Lastpage
398
Abstract
A technique for the reduction of the computational requirements of a wideband fast-Fourier transform (FFT) beamformer is presented. By utilizing the inherent symmetry of FFT calculations involving real-valued data, it is possible to reduce the number of FFT processors in the second tier of the beamformer structure by approximately 50%. This allows the bandwidth of the buses connecting the different FFT tiers to use a correspondingly smaller bandwidth
Keywords
computerised signal processing; fast Fourier transforms; radar theory; sonar; FFT processors; bandwidth; computational efficiency; computerised signal processing; sonar; symmetry; wideband FFT beamformer; Computational efficiency; Delay effects; Equations; Fast Fourier transforms; Frequency; Phased arrays; Sensor arrays; Signal processing algorithms; Sonar measurements; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
System Theory, 1989. Proceedings., Twenty-First Southeastern Symposium on
Conference_Location
Tallahassee, FL
ISSN
0094-2898
Print_ISBN
0-8186-1933-3
Type
conf
DOI
10.1109/SSST.1989.72499
Filename
72499
Link To Document