Titlebook: Acoustical Imaging; Ultrasonic Visualiza A. F. Metherell Book 1980 Plenum Press, New York 1980 Apertur.Phase.diffraction.energy.holography.

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https://doi.org/10.1007/978-3-663-02322-7hort pulses (in time) were physically long (in space). In the ultrasonic regime, however, physically short pulses are common (due to slow velocity of propagation). In this case steady-state theory is no longer adequate. In this paper I develop a simple method of analysis yielding the space-time impu

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