Location

Brunswick, ME

Start Date

1-1-1990 12:00 AM

Description

The detection of a flaw embedded in large-grained material using high-resolution broadband ultrasonic pulses is hindered by high amplitude interfering echoes (speckle) due to the unresolvable grain boundaries. The application of an optimal linear processor in this case is complicated by the fact that statistical parameters of the grain noise are not known a priori

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

9A

Chapter

Chapter 3: Interpretive Signal and Image Processing

Section

A: Signal Processing and Neural Networks

Pages

655-663

DOI

10.1007/978-1-4684-5772-8_82

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A Robust Detection Algorithm Using Frequency Diverse Multiple Observations

Brunswick, ME

The detection of a flaw embedded in large-grained material using high-resolution broadband ultrasonic pulses is hindered by high amplitude interfering echoes (speckle) due to the unresolvable grain boundaries. The application of an optimal linear processor in this case is complicated by the fact that statistical parameters of the grain noise are not known a priori