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Title: A Resonant Metamaterial Line Array for Ultrasound Compressive Imaging

Journal Article · · Journal of Vibration and Acoustics
DOI:https://doi.org/10.1115/1.4045579· OSTI ID:1803116
 [1];  [2];  [3];  [3]
  1. Department of Mechanical Engineering, Northeastern University, Boston, MA 02115
  2. Department of Electrical Engineering, Northeastern University, Boston, MA 02115
  3. Department of Mechanical Engineering, Department of Electrical Engineering, Northeastern University, Boston, MA 02115

Abstract Acoustic metamaterials have been proposed for numerous applications including subwavelength imaging, impedance matching, and lensing. Yet, their application in compressive sensing and imaging has not been fully investigated. When metamaterials are used as resonators at certain frequencies, they can generate random radiation patterns in the transmitted waves from the transducers and received waves from a target. Compressive sensing favors such randomness inasmuch as it can increase incoherence by decreasing the amount of mutual information between any two different measurements. This study aims at assessing whether the use of resonating metamaterial unit cells in a single-layered non-optimized array between a number of ultrasound transceivers and targets can improve the sensing capacity, point-spread function of the sensing array (their beam focusing ability), and imaging performance in point-like target detection. The theoretical results are promising and can open the way for more efficient metamaterial designs with the aim of enhancing ultrasound imaging with lower number of transceivers compared to the regular systems.

Research Organization:
Northeastern Univ., Boston, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0017614
OSTI ID:
1803116
Journal Information:
Journal of Vibration and Acoustics, Vol. 142, Issue 2; ISSN 1048-9002
Publisher:
The American Society of Mechanical Engineers (ASME)
Country of Publication:
United States
Language:
English

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  • Obermeier, Richard; Martinez-Lorenzo, Jose Angel
  • 2016 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2016 IEEE International Symposium on Antennas and Propagation (APSURSI) https://doi.org/10.1109/APS.2016.7696221
conference June 2016
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