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Spatial and temporal equalization based on an adaptive tapped-delay-line array antenna

This paper describes spatial and temporal modeling of a multipath channel which is useful in array antenna environment for mobile radio communications. From this modeling, a no distortion condition that is the Nyquist theorem, is derived for total equalization in both spatial and temporal domains. We use an adaptive tapped-delay-line array antenna as a tool of equalization in spatial and temporal domains. Several criteria for such spatial and temporal equalization are available to update weight and tap coefficients such as ZF (zero forcing), MSE (mean square error) and so on. In this paper, we discuss the optimum weight based on ZF criteria in spatial and temporal domains. Moreover, computer simulations show the performance of an adaptive array antenna based on the ZF criteria in spatial and temporal domains.