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Multichannel broadb...
Multichannel broadband Fano theory for arbitrary lossless antennas with applications in DOA estimation
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- Nordebo, Sven (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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- Gustafsson, Mats (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2005
- 2005
- English 4 s.
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In: Proceedings IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '05). - 1520-6149. - 0780388747 ; 4, s. 969-972
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Abstract
Subject headings
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- In this paper, we consider fundamental limitations for DOA estimation with arbitrary lossless antennas or antenna arrays inserted inside a sphere. Spherical vector modes and their associated equivalent circuits and Q factor approximations are employed as a general framework for the analysis. The classical broadband matching theory by Fano is extended to a general multiport S-parameter model of the antennas and fundamental bounds are given for the scattering parameters with respect to bandwidth and electrical size of the sphere. Finally, assuming a statistical signal model with Gaussian receiver noise, the Cramer-Rao lower bound is used to derive fundamental upper bounds for the performance of DOA estimation by a sphere.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- equivalent circuits
- multiport networks
- impedance matching
- direction-of-arrival estimation
- array signal processing
- antenna arrays
- Gaussian noise
- S-parameters
- Q-factor
Publication and Content Type
- kon (subject category)
- ref (subject category)
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