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Title: Noise analysis for near field 3-D FM-CW radar imaging systems

Near field radar imaging systems are used for several applications including concealed weapon detection in airports and other high-security venues. Despite the near-field operation, phase noise and thermal noise can limit the performance in several ways including reduction in system sensitivity and reduction of image dynamic range. In this paper, the effects of thermal noise, phase noise, and processing gain are analyzed in the context of a near field 3-D FM-CW imaging radar as might be used for concealed weapon detection. In addition to traditional frequency domain analysis, a time-domain simulation is employed to graphically demonstrate the effect of these noise sources on a fast-chirping FM-CW system.
Authors:
Publication Date:
OSTI Identifier:
1236327
Report Number(s):
PNNL-SA-109413
DOE Contract Number:
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: Passive and Active Millimeter-Wave Imaging XVIII, April 20, 2015, Baltimore, Maryland. Proceedings of the SPIE, 9462:Paper No. 946206
Publisher:
DA Wikner and AR Luukanen; SPIE, Bellingham, WA, 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-wave imaging; microwave imaging