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Proceedings Paper

Near-field sensing using subspace techniques
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Paper Abstract

Three techniques are studied for sensor array based pupil-plane imaging of point sources in the near field. Pupil plane imaging is a potential alternative in the absence of well-developed focal plane array technology. The techniques are sum and delay focusing, minimum variance distortionless response (MVDR) focusing and subspace focusing. While the first has been widely proposed for usage, it is demonstrated here that the other two provide better resolution. Between the MVDR and the subspace approaches, the latter potentially provides better performance in noise.

Paper Details

Date Published: 1 May 2009
PDF: 8 pages
Proc. SPIE 7349, Wireless Sensing and Processing IV, 73490A (1 May 2009); doi: 10.1117/12.819788
Show Author Affiliations
Raghuveer Rao, Army Research Lab. (United States)
Sohail Dianat, Rochester Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7349:
Wireless Sensing and Processing IV
Sohail A. Dianat; Michael D. Zoltowski, Editor(s)

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