Adaptive inverse filtering with chirp for medical ultrasound

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Title: Adaptive inverse filtering with chirp for medical ultrasound
Author: Venkatraman, Shyam; Rao, Navalgund
Abstract: In medical ultrasound imaging, the axial resolution is limited by the bandwidth of the transducer. In a linear frequency modulation (chirp) pulse coding technique for imaging, it is possible to inverse modulate the chirp amplitude by a function adaptively derived from the transducer frequency response. The transducer output then becomes an equalized chirp with a wider effective bandwidth. Subsequent pulse compression processing consequently improves the resolution. This concept has been evaluated experimentally in this paper.
Description: "Adaptive inverse filtering with chirp for medical ultrasound," Proceedings of the IEEE 17th Annual Conference, Engineering in Medicine and Biology Society. Institute of Electrical and Electronics Engineers. Held in Montreal, Quebec, Canada: 20-25 September 1995.
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Date: 1995-09-20

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