Interferometric imaging of a rotating sphere using synthetic aperture techniques

2002 ◽  
Author(s):  
D.W. Ricken ◽  
D.R. Fuhrmann
Keyword(s):  
Synthetic Aperture ◽  
Interferometric Imaging ◽  
Rotating Sphere

TERAHERTZ INTERFEROMETRIC AND SYNTHETIC APERTURE IMAGING

2007 ◽  
Vol 17 (02) ◽  
pp. 431-443 ◽  
Author(s):  
ALEXANDER M SINYUKOV ◽  
APARAJITA BANDYOPADHYAY ◽  
AMARTYA SENGUPTA ◽  
ROBERT B BARAT ◽  
DALE E GARY ◽  
...  
Keyword(s):  
Synthetic Aperture ◽  
Imaging Method ◽  
Interferometric Imaging ◽  
Metal Object ◽  
Security Applications ◽  
Concealed Weapons ◽  
Continuous Waves ◽  
Theoretical Predictions ◽  
Terahertz Frequencies ◽  
Good Agreement

Experimental results of homodyne terahertz interferometric 1-D and 2-D imaging are presented. The reconstructed images of a point source are in a good agreement with theoretical predictions. The performance of an N element detector array is imitated by only one detector placed at N positions. Continuous waves at 0.25-0.3 THz are used to detect a metal object behind a barrier. 1-D images of a C-4 sample have been obtained at several terahertz frequencies. Focusing issues of 2-D imaging have been demonstrated. The terahertz interferometric imaging method can be used in defense and security applications to detect concealed weapons, explosives as well as chemical and biological agents.

Terahertz Synthetic Aperture and Interferometric Imaging

2007 ◽  
Author(s):  
John F. Federici ◽  
Alexander M. Sinyukov ◽  
Robert B. Barat ◽  
Dale E. Gary ◽  
Zoi-Heleni Michalopoulou
Keyword(s):  
Synthetic Aperture ◽  
Interferometric Imaging

POOL BOILING FROM A ROTATING SPHERE IN FREON 113

1990 ◽  
Author(s):  
S. Joh ◽  
S. H. Schwartz ◽  
G. O'Shaughnessy
Keyword(s):  
Pool Boiling ◽  
Rotating Sphere
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