Dr. Steven P. Neal (Project 9)

A New Approach for Target/Interface Detection in the presence of Multiple Backscattered-Noise

In many remote-sensing applications, propagating waves are introduced into a medium and the echo response from the medium is analyzed in order to detect individual targets.  In certain cases, echoes from additional echo sources distributed over the echo volume interfere with the detection of the response from the target.  In ultrasonic nondestructive evaluation, for example, the target may be a crack in a component with the noise generated by echoes from the inherent structure within the material.  The goal of this project is to reduce to practice and establish the range of applicability of a new measurement/data analysis scheme for target/interface detection in the presence of multiple scattering noise.

Research supported under:

• NSF: Diffuse Ultrasonics and Materials Characterization
• Honeywell: Ultrasonic Based Assessment of Upset Forged Welds and Inertial Welds

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