Sources of and Remedies for Removing Unwanted Reflections in Millimeter Wave Images of Complex SOFI-Covered Space Shuttle Structures
- Author:
- Zoughi, R.
- Published:
- July 22, 2007.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Hepburn, Frank L.
Kharkovsky, S. - Access Online:
- hdl.handle.net
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
- 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 specific 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.
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 20090028758.
MSFC-412.
34th Quantitative Nondestructive Evaluation Conference (QNDE); 22-27 Jul. 2007; Golden, CO; United States. - Terms of Use and Reproduction:
- Copyright, Distribution as joint owner in the copyright.
- Access Online:
- hdl.handle.net
View MARC record | catkey: 15996841