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FEATURE ENHANCED ULTRASONIC FLAW DETECTION AND MICROSTRUCTURE CHARACTERIZATION…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
16916
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
16916
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Information Systems Tech Inc.
413 E 61st St Clarendon Hills, IL 60514
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1992
Title: FEATURE ENHANCED ULTRASONIC FLAW DETECTION AND MICROSTRUCTURE CHARACTERIZATION ALGORITHMS FOR NDE SYSTEMS
Agency: NASA
Contract: N/A
Award Amount: $489,130.00
 

Abstract:

IN THIS PROJECT, SOME NOVEL SIGNAL-PROCESSING TECHNIQUES FOR FEATURE-ENHANCED, ULTRASONIC NDE SYSTEMS WILL BE EXAMINED AND IMPLEMENTED. THE PROCESSING TECHNIQUES HAVE TWO OBJECTIVES: TO REDUCE THE BACKGROUND NOISE IN ORDER TO IMPROVE FLAW VISIBILITY AND SIZING, AND TO OBTAIN SIGNAL PARAMETERS THAT CAN BE CORRELATED TO THE MICROSTRUCTURE FOR CHARACTERIZATION. AN INTERACTIVE SOFTWARE PACKAGE FOR AN APPLE MAC II PLATFORM, ADAPTABLE TO THE NDE ULTRASONIC SYSTEM AT NASA, WILL BE DEVELOPED AND IMPLEMENTED. FOR ENHANCED ULTRASONIC FLAW DETECTION, A SPLIT-SPECTRUM PROCESSING FOLLOWED BY AVERAGING, MEDIAN FILTERING, MINIMUM DETECTION, QUADRATIC OPTIMAL DETECTION, AND GENERALIZED-ORDER STATISTIC FILTERING WILL BE DEVELOPED. NOVEL ALGORITHMS FOR MICROSTRUCTURE IMAGING AND CHARACTERIZATION SUCH AS TEMPORAL SMOOTHING, DISPERSIVE VELOCITY ESTIMATION, CORRELATION PROCESSING, HOMOMORPHIC PROCESSING, POWER SPECTRUM AND MOMENT ESTIMATION, AND LINEARPREDICTIVE CODING WILL BE DEVELOPED AND IMPLEMENTED. IN THIS PROJECT, SOME NOVEL SIGNAL-PROCESSING TECHNIQUES FOR FEATURE-ENHANCED, ULTRASONIC NDE SYSTEMS WILL BE EXAMINED AND IMPLEMENTED. THE PROCESSING TECHNIQUES HAVE TWO OBJECTIVES: TO REDUCE THE BACKGROUND NOISE IN ORDER TO IMPROVE FLAW VISIBILITY AND SIZING, AND TO OBTAIN SIGNAL PARAMETERS THAT CAN BE CORRELATED TO THE MICROSTRUCTURE FOR CHARACTERIZATION. AN INTERACTIVE SOFTWARE PACKAGE FOR AN APPLE MAC II PLATFORM, ADAPTABLE TO THE NDE ULTRASONIC SYSTEM AT NASA, WILL BE DEVELOPED AND IMPLEMENTED. FOR ENHANCED ULTRASONIC FLAW DETECTION, A SPLIT-SPECTRUM PROCESSING FOLLOWED BY AVERAGING, MEDIAN FILTERING, MINIMUM DETECTION, QUADRATIC OPTIMAL DETECTION, AND GENERALIZED-ORDER STATISTIC FILTERING WILL BE DEVELOPED. NOVEL ALGORITHMS FOR MICROSTRUCTURE IMAGING AND CHARACTERIZATION SUCH AS TEMPORAL SMOOTHING, DISPERSIVE VELOCITY ESTIMATION, CORRELATION PROCESSING, HOMOMORPHIC PROCESSING, POWER SPECTRUM AND MOMENT ESTIMATION, AND LINEARPREDICTIVE CODING WILL BE DEVELOPED AND IMPLEMENTED.

Principal Investigator:


0

Business Contact:

Small Business Information at Submission:

Information Systems Tech Inc.
413 E 61st St Clarendon Hills, IL 60514

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No