An analog FFT beamformer for acoustic applications
Abstract
An analog FFT beamformer has been designed, built and tested for one- and two-dimensional arrays. In addition, a focusing capability has been built and tested. The focusing system is used to remove the signal wavefront curvature due to close sources. This technology is applicable to a wide variety of array configurations, providing beamformers that are inexpensive, reliable, small, low power and have high data throughput rates.
- Publication:
-
Final Report
- Pub Date:
- March 1978
- Bibcode:
- 1978urc..rept......
- Keywords:
-
- Analog Circuits;
- Fast Fourier Transformations;
- Imaging Techniques;
- Phonon Beams;
- Sound Waves;
- Channels (Data Transmission);
- Focusing;
- Printed Circuits;
- Underwater Acoustics;
- Wave Fronts;
- Acoustics