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This paper deals with the problem of estimating the parameters of signals modeled by the sum of three-dimensional (3-D) complex exponential. We propose a matrix pencil (MP) method which is a very efficient computational method to compute the multidimensional complex exponentials of the signals. This technique is applied directly to the 3-D data without forming a covariance matrix. Limited numerical examples are presented to illustrate the performance and accuracy of the proposed technique.