AVALIAÇÃO DE MÉTODOS DE ESTIMAÇÃO DA DIREÇÃO DE CHEGADA DE SINAIS EM SISTEMAS DE COMUNICAÇÕES CELULARES / EVALUATION OF ESTIMATION METHODS OF DIRECTION OF ARRIVAL OF SIGNALS IN CELLULAR COMMUNICATIONS SYSTEMS

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

This work intends to contribute for the employment of the Adaptive Antennas in Wireless Communications. In this way, a review of methods for direction of arrival estimation and beamforming is presented. The performance of some subspace fitting direction of arrival estimation methods is evaluated by simulation considering four propagation scenarios: The first assumes only additive white Gaussian noise; The three others consider typical models for local scattering, which means a random angular spread of angle of arrival.

ASSUNTO(S)

cellular communications comunicacao celular antenas adaptativas adaptative antennas

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