Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1988.07a
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- Pages.713-716
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- 1988
A Study on the Phase Correction of ultratrasound transfer function
초음파 전달함수의 위상보정을 위한 연구
- Min, Yong-Ki (Dept. Eletronic Eng., Chung-Ang University) ;
- Lee, Kang-Ho (Dept. Eletronic Eng., Chung-Ang University) ;
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Choi, Jong-Soo
(Dept. Eletronic Eng., Chung-Ang University)
- Published : 1988.07.01
Abstract
To characterize the bioloical tissues, the new methods to measure the frequency dependent attenuation are presented in this paper. In general, ultrasonic phase information was assumed by linear function of the frequency. But the minimum phase function which characterizes the frequency dispersion of tissue was derived in (2). It is very significant to measure the attenuation by using the minimum phase function to characterize the frequence dispersion of tissue. Also, we propose the phase correcting technique to take advantage of the idea that the distortion of amplitude component when the wave propagates through media.
Keywords