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Elliptical-Tukey chirp signal for high-resolution, air-coupled ultrasonic imaging

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Pallav, Prakash, Gan, Tat Hean and Hutchins, David A. (2007) Elliptical-Tukey chirp signal for high-resolution, air-coupled ultrasonic imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol.54 (No.8). pp. 1530-1540. doi:10.1109/TUFFC.2007.423

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Official URL: http://dx.doi.org/10.1109/TUFFC.2007.423

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Abstract

A new signal processing method, which uses a modified chirp signal for air-coupled ultrasonic imaging, is described. A combination of the elliptical and Tukey window functions has been shown to give a better performance than the Harming windowing used in most pulse-compression algorithms for air-coupled applications. The elliptical-Tukey chirp signal provides an improvement in both the resolution of images and signal-to-noise ratios. In addition, this type of signal also reduces the level of signal voltages required to drive the source transducer while maintaining the performance of the system. This approach, thus, may have wide interest in all forms of wide bandwidth ultrasonic imaging.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Journal or Publication Title: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Publisher: IEEE
ISSN: 0885-3010
Official Date: August 2007
Dates:
DateEvent
August 2007Published
Volume: Vol.54
Number: No.8
Number of Pages: 11
Page Range: pp. 1530-1540
DOI: 10.1109/TUFFC.2007.423
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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