L/sub p/-complex approximation using iterative reweighted least squares for FIR digital filters
J.A. Barreto, C.S. Burrus · 2002
This paper examines the use of the iteratively reweighted least squares (IRLS) error algorithm to obtain an L/sub p/-approximation for the design of FIR digital filters with a complex-valued desired frequency response. The algorithm presented, introduced by Burrus and Barreto (see IEEE Proceed. ISCAS 92, p.545, 1992) for the design of 1-D linear-phase FIR filters, considers the case of 2>