Complex coefficient nonrecursive digital filter design using a least-squares method
Sunder S. Kidambi, Ravi P. Ramachandran · IEEE Transactions on Signal Processing · 1996
A method for the design of complex-coefficient nonrecursive filters is described. In this method, a mean square error is formulated in a quadratic form. The filter coefficients are obtained by solving a system of linear equations using computationally robust and efficient algorithms. Examples are presented to demonstrate the efficacy of our method.