کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
563999 | 875555 | 2013 | 9 صفحه PDF | دانلود رایگان |
This paper studies the design of FIR filter with low group delay, where the desired phase response is not being approximated. It is formulated as a constrained optimization problem, which is then solved globally. Numerical experiments show that our design method can produce a filter with smaller group delay than that obtained by the existing convex optimization method used in conjunction with a minimum phase spectral factorization method under the same design criteria. Furthermore, our formulation offers us the flexibility for the trade-off between the group delay and the magnitude response directly. It also allows the feasibility of imposing constraints on the group delay.
► A direct optimization method is proposed to solve the design of FIR filter with low group delay.
► A sufficient condition is presented to identify the global minimizer of the proposed constrained optimization problem.
► A SDP-based algorithm is proposed to solve the dual problem.
Journal: Signal Processing - Volume 93, Issue 7, July 2013, Pages 1764–1772