Multichannel Broadband Fano Theory with Applications in Array Signal Processing

Summary, in English

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 lower bounds for the performance of DOA estimation by a sphere.

• Författare: Sven Nordebo; Mats Gustafsson
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2005
• Språk: Engelska
• Sidor: 288-297
• Publikation/Tidskrift/Serie: AIP Conference Proceedings
• Volym: 750
• Länkar: http://dx.doi.org/10.1063/1.1874580
• Dokumenttyp: Konferensbidrag
• Förlag: American Institute of Physics (AIP)
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: Foundations of Propability and Physics 3
• Conference date: 2004-06-07 - 2004-06-12
• Conference place: Växjö, Sweden
• Status: Published
• Forskningsgrupp: Electromagnetic theory
• ISBN/ISSN/Övrigt: ISBN: 0-7354-0235-3