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Estimation of Direction of Arrival (DOA) signal is one important function of adoptive antenna. The fuzzy angle in correlative signal environment of DOA estimation could seriously affect the estimation precision. Based on 1-D spatial smoothing theory the paper analyzes the algorithm for 2-D angle estimation in correlative source environment of hexagonal array and simulations were carried out. A method...
In order to improve the spectrum hole detection in Cognitive radio (CR), Multitaper Method with Singular Value Decomposition (MTM-SVD) has been proposed. However, how to decide the coefficient in the spatiotemporal complex matrix constructed by MTM-SVD is still under discussion. In this paper, a new scheme, employing array signal processing, for coefficient determination is introduced. Since the sensor...
Different beamforming algorithms like side-lobe cancellors, linearly constrained minimum variance (LCMV), least mean squares (LMS), recursive LMS, and direction of arrival (DOA) exist in literature. Among the direction of arrival (DOA) algorithms, MUSIC and ESPRIT play the most important role. These two algorithms were implemented and their performances were compared. The algorithms were simulated...
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