DocumentCode
3029311
Title
Frequency domain beamforming techniques
Author
DeMuth, Gordon L.
Author_Institution
IBM Federal System Division, Manassas, VA
Volume
2
fYear
1977
fDate
28246
Firstpage
713
Lastpage
715
Abstract
It is well known that sensor signals must be sampled at a rate much higher than the Nyquist rate to minimize degradations of side lobe levels and maximum response axis gain in sampled time domain beamformers. Various frequency domain techniques can be employed to form beamswithout requiring this excessively high data rate that can cause data management problems in programmable signal processors. Techniques applicable to line, ring, cylindrical and spherical arrays are developed.
Keywords
Acoustic beams; Acoustic sensors; Array signal processing; Degradation; Delay effects; Frequency domain analysis; Propagation delay; Sampling methods; Sensor arrays; Sensor systems;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '77.
Type
conf
DOI
10.1109/ICASSP.1977.1170316
Filename
1170316
Link To Document