SOURCES OF AND REMEDIES FOR REMOVING UNWANTED REFLECTIONS IN MILLIMETER WAVE IMAGES OF COMPLEX SOFI-COVERED SPACE SHUTTLE STRUCTURES
In the recent years, continuous-wave near-field and lens-focused millimeter wave imaging systems have been effectively used to demonstrate their utility for producing high-resolution images of metallic structures covered with spay on foam insulation (SOFI) such as the Space Shuttle external fuel tan...
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| Published in | Review of Progress in Quantitative Nondestructive Evaluation Volume 27B (AIP Conference Proceedings Volume 975) Vol. 975; pp. 1010 - 1017 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
01.01.2008
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| Online Access | Get full text |
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| Summary: | In the recent years, continuous-wave near-field and lens-focused millimeter wave imaging systems have been effectively used to demonstrate their utility for producing high-resolution images of metallic structures covered with spay on foam insulation (SOFI) such as the Space Shuttle external fuel tank. However, for some specifc structures a certain interference pattern may be superimposed on the produced images. There are methods by which the influence of this unwanted interference can be reduced, such as the incorporation of an incidence angle and the proper use of signal polarization. This paper presents the basics of this problem and describes the use of the methods for reducing this unwanted influence through specific examples. |
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| Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 |
| ISBN: | 9780735404946 0735404941 |
| ISSN: | 0094-243X |
| DOI: | 10.1063/1.2902543 |