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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 ISSN 0885-3010.
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Official URL: http://dx.doi.org/10.1109/TUFFC.2007.423
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 | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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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: |
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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Status: | Not Peer Reviewed | ||||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 |
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