Maximally Flat IIR Smoothers With Repeated Poles and a Prescribed Delay

• Published in: IEEE transactions on signal processing Vol. 64; no. 19; pp. 4975 - 4986
• Main Author: Kennedy, Hugh L.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Colored noise; Delays; Design analysis; Design engineering; Digital filters; estimation theory; Filtering theory; Flats; Frequency-domain analysis; Gain; IIR filters; Low-pass filters; Noise; Optimization; orthogonal transforms; parameter estimation; Poles; Polynomials; recursive filters; Time-domain analysis; White noise; zero assignment

The problem of optimal high-frequency noise suppression and low-frequency signal transmission in sampled sensor systems is considered in this paper. Low-delay digital filters with linear phase and unity magnitude at the dc limit (i.e., maximally flat) are of particular interest. Savitzky-Golay smoot...