Joint Channel Estimation and Data Detection with Cubature Kalman Filters
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چکیده
Resumo— Este artigo apresenta a utilização do cubature Kalman filter para a estimação dos coeficientes de um canal MIMO duplamente seletivo e detecção de símbolos discretos de forma conjunta. Com base no modelamento da dinâmica temporal dos coeficientes do canal e dos símbolos transmitidos, um vetor de estados é definido contendo ambas informações levando a uma não-lineraridade na equação de observação do sistema proposto. O cubature Kalman filter é então utilizado para estimar as variáveis de estado, acompanhando satisfatoriamente a variação temporal do canal e reconhecendo os símbolos transmitidos com baixa taxa de erros.
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تاریخ انتشار 2009