Online Compensation of Unknown Mutual Coupling Effect in 2-Dimensional Arrival Angle Estimation

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Bahrololoom, Ebrahim |

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45162 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Nayebi, Mohammad Mehdi
Abstract:
In the recent decades, the estimation of direction of arrival has been an active area and some high resolution direction finding methods like MUSIC and ESPIRIT have been developed. These methods suffer from factors like mutual coupling. Direction of arrival estimation in presence of mutual coupling is a widely studied problem. In order to resolve this problem, many array calibration algorithms have been developed. However it may be impossible or difficult to set some calibration source in some situation. In this work we show that the effect of mutual coupling can be dynamically compensated by the inherent mechanism. First we show that how mutual coupling can degrades the performance of direction finding algorithm and then we introduce some common compensation methods. In next step, we introduce our method and finally simulation result will be presented to show the satisfying performance of the proposed method
Keywords:
Mutual Coupling ; Direction of Arrival (DOA)Estimation ; Direction Finding ; Phased Array Radars ; Multiple Signal Classification (MUSIC)Algorithm ; Autocalibration

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