DOA estimation in the presence of unknown mutual coupling and multipath propagation in a frequency hopping system

We propose a new method for DOA estimation in the presence of multipath propagation and mutual coupling (MC) for a frequency hopping (FH) system. We take MC and multipath propagation into account, and derive a maximum likelihood (ML) estimator for both MC matrix and DOA estimation. We then formulate...

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Bibliographic Details
Main Authors: Qiming Bao, Ko, C.C., Wanjun Zhi
Format: Conference Proceeding
Language:English
Subjects:
Antenna arrays
Antennas
Applied sciences
Conferences
Detection, estimation, filtering, equalization, prediction
Direction of arrival estimation
Exact sciences and technology
Frequency estimation
Information, signal and communications theory
Iterative algorithms
Linear antenna arrays
Maximum likelihood estimation
Minimization methods
Mutual coupling
Narrowband
Radiocommunications
Signal and communications theory
Signal processing algorithms
Signal, noise
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
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Summary:We propose a new method for DOA estimation in the presence of multipath propagation and mutual coupling (MC) for a frequency hopping (FH) system. We take MC and multipath propagation into account, and derive a maximum likelihood (ML) estimator for both MC matrix and DOA estimation. We then formulate an iterative alternating minimization (AM) algorithm for finding the MC and DOA parameters in an alternate manner. Simulation results illustrating the performance of the algorithm and comparison with the Cramer-Rao bound (CRB) are also presented.
DOI:10.1109/ICC.2004.1312982