NDLI: A low power, area efficient fpga based beamforming technique for 1-D CMUT arrays

Content Provider	IEEE Xplore Digital Library
Author	Joseph, B. Joseph, J. Vanjari, S.R.K.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol. Hyderabad, Hyderabad, India (Joseph, B.; Joseph, J.; Vanjari, S.R.K.)
Abstract	A low power area efficient digital beamformer targeting low frequency (2MHz) 1-D linear Capacitive Micromachined Ultrasonic Transducer (CMUT) array is developed. While designing the beamforming logic, the symmetry of the CMUT array is well exploited to reduce the area and power consumption. The proposed method is verified in Matlab by clocking an Arbitrary Waveform Generator(AWG). The architecture is successfully implemented in Xilinx Spartan 3E FPGA kit to check its functionality. The beamforming logic is implemented for 8, 16, 32, and 64 element CMUTs targeting Application Specific Integrated Circuit (ASIC) platform at Vdd 1.62V for UMC 90nm technology. It is observed that the proposed architecture consumes significantly lesser power and area (1.2895 mW power and 47134.4 $μm^{2}$ area for a 64 element digital beamforming circuit) compared to the conventional square root based algorithm.
Starting Page	4371
Ending Page	4374
File Size	2272151
Page Count	4
File Format	PDF
ISSN	1557170X
e-ISBN	9781424492718
DOI	10.1109/EMBC.2015.7319363
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-25
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transducers Array signal processing Delays Ultrasonic imaging Table lookup Clocks
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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