Numerical Techniques for Modeling Ultrasound Systems
The relationship between the electrical output signal from an ultrasound pulse-echo system and the features of the reflecting structure or interface is complex, yet the ability to model the complete electro-acoustic interaction between an ultrasound system and a reflecting structure is essential for the development of quantitative ultrasound measurement techniques. A number of variables affect the electrical output signal: i) parameters of the transmitting and receiving transducers (geometry, aperture size, frequency response and excitation signal), ii) properties of the medium (density, speed of sound, absorption and scattering), and iii) features of the reflecting structure (size, shape, surface characteristics, orientation, and location).
KeywordsPlane Wave Angular Spectrum Planar Reflector Misalignment Angle Perfect Absorber
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