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Title: Sparse Multi-Static Arrays for Near-Field Millimeter-Wave Imaging

This paper describes a novel design technique for sparse multi-static linear arrays. The methods described allow the development of densely sampled linear arrays suitable for high-resolution near-field imaging that require dramatically fewer antenna and switch elements than the previous state of the art. The techniques used are related to sparse array techniques used in radio astronomy applications, but differ significantly in design due to the transmit-receive nature of the arrays, and the application to linear arrays that achieve dense uniform sampling suitable for high-resolution near-field imaging. As many as 3 to 5 or more samples per antenna can be obtained, compared to 1 sample per antenna for the current state of the art. This could dramatically reduce cost and improve performance over current active millimeter-wave imaging systems.
Authors:
Publication Date:
OSTI Identifier:
1178907
Report Number(s):
PNNL-SA-96544
400904120
DOE Contract Number:
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: IEEE Global Conference on Signal and Information Processing (GlobalSIP 2013), December 3-5, 2013, Austin, Texas, 699-702
Publisher:
IEEE , Piscataway, NJ, United States(US).
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Millimeter waves, imaging, personnel screening, concealed-weapon detection