颂扬本人
发表于 2025-3-26 21:50:08
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ureter
发表于 2025-3-27 01:44:32
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预感
发表于 2025-3-27 08:06:17
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MAOIS
发表于 2025-3-27 12:05:41
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不确定
发表于 2025-3-27 14:21:59
Spatially Averaged one-way Diffraction,n this chapter, we exploit this Fourier equivalence and derive a set of general, closed-form, frequency-domain expressions describing spatially averaged one-way diffraction for . piston transmitters and receivers. The expressions derived are general in the sense that the area of the receiver may be
的阐明
发表于 2025-3-27 19:54:58
Spatially Averaged two-way Diffraction,n pulsed mode. Also recall from Chapter 1 that certain methods of tissue characterization involve spectral analysis of RF data. Results produced by these methods are biased by the transmit and receive impulse responses of the transducer and by two-way diffraction effects. The bias can be removed via
清澈
发表于 2025-3-27 22:04:23
Experimental Investigation,this chapter, an aspect of the proposed theory is investigated experimentally. Specifically, autoconvolution diffraction corrections will be implemented with time-varying filters, and diffraction-corrected B-mode images will be reconstructed using a short-time Fourier technique. The raw and diffract
FACET
发表于 2025-3-28 04:23:50
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厨师
发表于 2025-3-28 09:41:14
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curriculum
发表于 2025-3-28 14:11:10
Introduction,ientific community’s understanding of scalar diffraction from a circular aperture. When viewed in its entirety, this research attains all three goals by presenting rigorous derivations and original analyses that unify and extend existing theory with novel insights and generalized results.