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12th Annual Meeting of China Association for Science and Technology on Information and Communication Technology and Smart Grid (AMCST 2010 E-BOOK)

Fuzhou,China,11.1-11.3，2010

ISBN: 978-1-935068-23-5 Scientific Research Publishing, USA

E-Book 660pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $120

Title: Horizontally Polarized Antenna Array Used for the Cancellation of Es Layer Clutter
Source: 12th Annual Meeting of China Association for Science and Technology on Information and Communication Technology and Smart Grid (AMCST 2010 E-BOOK) (pp 373-376)
Author(s): Long Zhao, College of Information Science and Engineering, Northeastern University Shenyang, China
Xing-wei Wang, College of Information Science and Engineering, Northeastern University Shenyang, China
Abstract: There has Es layer clutter in the high frequency surface wave radar, and the Es layer clutter has the difference polarized characters with the signal. Horizontally polarized antenna can be added as auxiliary antenna in the high frequency surface wave radar system that uses vertically polarized antennas to suppress the Es layer clutter. The clutter-to-signal ratio in the outputs of the auxiliary antennas will affect the suppression of the Es layer clutter in the main antennas. An antenna array consists of three horizontally polarized antennas is proposed in this paper. Using the superdirective synthetically method, the mainlobe of the auxiliary horizontally polarized antenna array is put on the direction of the Es layer clutter arrival direction, and a low sidelobe is put on the direction of the signal arrival direction. Then the auxiliary horizontally polarized antenna array will have a big gain on Es layer clutter and a little gain on signal. So the suppression of the Es layer clutter in the main antennas which use the horizontally polarized antenna array as auxiliary antenna will be more effective.
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