Acoustical Imaging - Powers, John P.

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Sommaire:
Imaging Systems.- Scanning Acoustic Microscopy of Solid Objects Using Aspheric Lenses.- A Digital Processing System for Acousto-optic Visualization of Sound Fields.- Acoustical Imaging Using Focalization under Oblique Incidence through and Interface-Application to Non-destructive Testing.- Generation of Acoustical Images from the Absorption of Pulsed Microwave Energy.- A Thermoplastic Acoustical Holography Recording Device.- Two-dimensional Imaging with a High Resolution PVF2/Si Optically-scanned Receiving Transducer.- Tissue Characterization.- An Ultrasonic Determination of Cardiac Muscle Structures.- The Application of Diffraction Analysis to Liver and Thyroid Disease.- Tissue Parameter Measurement and Imaging.- Pulse Scattering in Dispersive Media.- An Absolute Measurement of Backscattering Coefficients for Excised Human Tissues and its Relevance to Abdominal Imaging.- Signal Processing Techniques.- The Design And Application of Software Filters to Improve Lateral Resolution in a B-mode Ultrasonogram.- Digital Filtering of Acoustic Images.- Two-dimensional Null Processing.- Acoustic Imaging in Marine Sediment: A Multiple Microprocessor Array Processor using the Trace Function.- Phase Error Reduction Method for a Towed Array.- Digital Enhancement of Ultrasonic Images and its Application to Non-destructive Testing of Composite Materials.- Preliminary Results of Computer Aided Acoustic Imaging.- An Optimum Ultrasonic Imaging System Using ARMA Processing.- Acoustical Tomography.- Ultrasonic Planar Scanned Tomography.- A Comparison of Born and Rytov Approximations in Acoustic Tomography.- Tomographie Evaluation of Sound Fields from Acousto-optic Data.- Effects of Diffraction on Ultrasonic Computer-Assisted Tomography.- Inversion Techniques.- An Exact Theory for Coherent Acoustic Probing.- Acoustical Holography Is, At Best, Only a Partial Solution to the Inverse Scattering Problem.- Inverse Scattering, Inverse Field, and Inverse Source Theory.- Wave Equations and Inverse Solutions for Soft Tissue.- Asymptotic Ultrasonic Inversion Based on Using More Than one Frequency.- Transducers and Arrays.- The Properties and Performance of a Si-PVF2 Optically Controlled Acoustic Point Source.- Effect of Mechanical Aberrations on the Resolution of Fresnel Zone Plate Transducers.- Sidelobe Reduction of the Ring Array for Use in Circularly Symmetric Imaging Systems.- Anomalous Quantization Error Lobes in Phased Array Images.- Multi-element Arrays for NDE Applications.- Study of the Normal Modes of Vibration of the Peizoelectric Transducers used in a Acoustic Imaging Applications.- New Techniques.- Linear Impulse Holography.- Acoustic Passive Remote Temperature Sensing.- The Speed of Sound as a Thermal Image CT Scan Parameter.- Focused Acoustic Beams for Accurate Phase Measurements.- High Resolution Ultrasonic Testing System Using Dynamic Focusing and Signal Correlation.- Eddy Current Phasography.- A 50 MHZ Synthetic Focus System.- Bibliographic Index.