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Abstract
The aim of this paper is to present a comparison between three of the main algorithms for the estimation of Direction Of Arrival (DOA) used in smart antenna systems to eliminate fading and interreferences, namely Conventional Beamformer, CAPON (Maximum Likelihood Methods ‘Minimum Variance Distorsionless Response’) and Multiple Signal Classification (MUSIC), wich represent three different methods with different calculation techniques. In this work we also simulate several execution scenarios, using MATLAB, to evaluate the factors impacting the precision and the resolution of the DOA estimation in the case of MUSIC algorithm, as it is arguably the most used one, this evaluation is achieved by varying the SNR (signal-to-noise ratio), the spacing between element, the number of array elements and the number of samples (snapshots).
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