Abstract:
The direction of arrival (DOA) estimation problem in the presence of signal and noise coupling in antenna arrays is addressed. In many applications, such as smart antenna...Show MoreMetadata
Abstract:
The direction of arrival (DOA) estimation problem in the presence of signal and noise coupling in antenna arrays is addressed. In many applications, such as smart antenna, radar and navigation systems, the noise coupling between different antenna array elements is often neglected in the antenna modeling and thus, may significantly degrade the system performance. Utilizing the exact noise covariance matrix enables to achieve high-performance source localization by taking into account the colored properties of the array noise. The noise covariance matrix of the antenna array consists of both the external noise sources from sky, ground and interference, and the internal noise sources from amplifiers and loads. Computation of the internal noise covariance matrix is implemented using the theory of noisy linear networks combined with the method of moments (MoM). Based on this noise statistical analysis, a new four-port antenna element consisting of two orthogonal loops is proposed with enhanced source localization performance. The maximum likelihood (ML) estimator and the Cramer-Rao lower bound (CRLB) for DOA estimation in the presence of noise coupling is derived. Simulation results show that the noise coupling in antenna arrays may substantially alter the source localization performance. The performance of a mismatched ML estimator based on a model which ignores the noise coupling shows significant performance degradation due to noise coupling. These results demonstrate the importance of the noise coupling modeling in the DOA estimation algorithms.
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 55, Issue: 7, July 2007)
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Aviel Kisliansky was born in Israel on September 30, 1977. He received the B.Sc. degree (cum laude) in electrical engineering, from the Technion-Israel Institute of Technology, Haifa, Israel, in 2000, and the M.Sc. degree in electrical engineering from the Ben-Gurion University of the Negev, Beer Sheva, Israel, in 2006.
From 2000 to 2006, he worked as a System Engineer and Group Leader for the Israeli Ministry of Defense, ...Show More
Aviel Kisliansky was born in Israel on September 30, 1977. He received the B.Sc. degree (cum laude) in electrical engineering, from the Technion-Israel Institute of Technology, Haifa, Israel, in 2000, and the M.Sc. degree in electrical engineering from the Ben-Gurion University of the Negev, Beer Sheva, Israel, in 2006.
From 2000 to 2006, he worked as a System Engineer and Group Leader for the Israeli Ministry of Defense, ...View more
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Reuven Shavit (M'82–SM'90) was born in Rumania on November 14, 1949. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Technion-Israel Institute of Technology, Haifa, Israel, in 1971 and 1977, respectively, and the Ph.D. degree in electrical engineering from the University of California, Los Angeles, in 1982.
From 1971 to 1993, he worked as a Staff Engineer and Antenna Group Leader in the Electroni...Show More
Reuven Shavit (M'82–SM'90) was born in Rumania on November 14, 1949. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Technion-Israel Institute of Technology, Haifa, Israel, in 1971 and 1977, respectively, and the Ph.D. degree in electrical engineering from the University of California, Los Angeles, in 1982.
From 1971 to 1993, he worked as a Staff Engineer and Antenna Group Leader in the Electroni...View more
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Joseph Tabrikian (S'89–M'97–SM'98) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from Tel-Aviv University, Tel-Aviv, Israel, in 1986, 1992 and 1997, respectively.
During 1996 to 1998 he was with the Department of Electrical and Computer Engineering, Duke University, Durham, NC, as an Assistant Research Professor. He is now a Faculty member at the Department of Electrical and Computer Engineering, B...Show More
Joseph Tabrikian (S'89–M'97–SM'98) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from Tel-Aviv University, Tel-Aviv, Israel, in 1986, 1992 and 1997, respectively.
During 1996 to 1998 he was with the Department of Electrical and Computer Engineering, Duke University, Durham, NC, as an Assistant Research Professor. He is now a Faculty member at the Department of Electrical and Computer Engineering, B...View more
Contents Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Aviel Kisliansky was born in Israel on September 30, 1977. He received the B.Sc. degree (cum laude) in electrical engineering, from the Technion-Israel Institute of Technology, Haifa, Israel, in 2000, and the M.Sc. degree in electrical engineering from the Ben-Gurion University of the Negev, Beer Sheva, Israel, in 2006.
From 2000 to 2006, he worked as a System Engineer and Group Leader for the Israeli Ministry of Defense, where he was involved in research and development of ground-surveillance radar systems. Since 2006, he has been working for Alvarion-Israel, Ltd., Tel Aviv, as a System Engineer, involved in the development of 802.16e MIMO communication systems. His research interests include smart antennas and statistical signal processing with application to radar and communication systems.
Aviel Kisliansky was born in Israel on September 30, 1977. He received the B.Sc. degree (cum laude) in electrical engineering, from the Technion-Israel Institute of Technology, Haifa, Israel, in 2000, and the M.Sc. degree in electrical engineering from the Ben-Gurion University of the Negev, Beer Sheva, Israel, in 2006.
From 2000 to 2006, he worked as a System Engineer and Group Leader for the Israeli Ministry of Defense, where he was involved in research and development of ground-surveillance radar systems. Since 2006, he has been working for Alvarion-Israel, Ltd., Tel Aviv, as a System Engineer, involved in the development of 802.16e MIMO communication systems. His research interests include smart antennas and statistical signal processing with application to radar and communication systems.View more
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Reuven Shavit (M'82–SM'90) was born in Rumania on November 14, 1949. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Technion-Israel Institute of Technology, Haifa, Israel, in 1971 and 1977, respectively, and the Ph.D. degree in electrical engineering from the University of California, Los Angeles, in 1982.
From 1971 to 1993, he worked as a Staff Engineer and Antenna Group Leader in the Electronic Research Laboratories of the Israeli Ministry of Defense, Tel Aviv, where he was involved in the design of reflector, microstrip, and slot antenna arrays. He was also a part-time Lecturer at Tel Aviv University, teaching various antenna and electromagnetic courses. From 1988 to 1990 he was associated with ESSCO, Concord, MA, as a Principal Engineer involved in scattering analysis and tuning techniques of high performance ground based radomes. Currently, he is with Ben-Gurion University of the Negev, as an Associate Professor doing research in microwave components and antennas. His present research interest is in the areas of smart antennas, tuning techniques for radomes and numerical methods for design microstrip, slot and reflector antennas.
Reuven Shavit (M'82–SM'90) was born in Rumania on November 14, 1949. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Technion-Israel Institute of Technology, Haifa, Israel, in 1971 and 1977, respectively, and the Ph.D. degree in electrical engineering from the University of California, Los Angeles, in 1982.
From 1971 to 1993, he worked as a Staff Engineer and Antenna Group Leader in the Electronic Research Laboratories of the Israeli Ministry of Defense, Tel Aviv, where he was involved in the design of reflector, microstrip, and slot antenna arrays. He was also a part-time Lecturer at Tel Aviv University, teaching various antenna and electromagnetic courses. From 1988 to 1990 he was associated with ESSCO, Concord, MA, as a Principal Engineer involved in scattering analysis and tuning techniques of high performance ground based radomes. Currently, he is with Ben-Gurion University of the Negev, as an Associate Professor doing research in microwave components and antennas. His present research interest is in the areas of smart antennas, tuning techniques for radomes and numerical methods for design microstrip, slot and reflector antennas.View more
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
Joseph Tabrikian (S'89–M'97–SM'98) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from Tel-Aviv University, Tel-Aviv, Israel, in 1986, 1992 and 1997, respectively.
During 1996 to 1998 he was with the Department of Electrical and Computer Engineering, Duke University, Durham, NC, as an Assistant Research Professor. He is now a Faculty member at the Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel. His research interests include statistical signal processing, source detection and localization, and speech and audio processing.
Dr. Tabrikian served as an Associate Editor of the IEEE Transactions on Signal Processing during 2001–2004.
Joseph Tabrikian (S'89–M'97–SM'98) received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering from Tel-Aviv University, Tel-Aviv, Israel, in 1986, 1992 and 1997, respectively.
During 1996 to 1998 he was with the Department of Electrical and Computer Engineering, Duke University, Durham, NC, as an Assistant Research Professor. He is now a Faculty member at the Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel. His research interests include statistical signal processing, source detection and localization, and speech and audio processing.
Dr. Tabrikian served as an Associate Editor of the IEEE Transactions on Signal Processing during 2001–2004.View more
