A maximally flat group delay recursive digital filter with controllable magnitude

P. Thajchayapong; P. Lomtong

doi:10.1109/tcs.1978.1084388

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A maximally flat group delay recursive digital filter with controllable magnitude

P. Thajchayapong P. Lomtong

Year: 1978 Journal: IEEE Transactions on Circuits and Systems Vol: 25 (1)Pages: 51-53 Publisher: Institute of Electrical and Electronics Engineers

DOI: 10.1109/tcs.1978.1084388

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Abstract

A recursive digital filter whose group delay approximates a prescribed constant value does not provide a designer with freedom on its magnitude response. This letter presents a simple technique to adjust the magnitude response while retaining its constant group delay characteristics.

Keywords:

Magnitude (astronomy) Group delay and phase delay Control theory (sociology) Constant (computer programming) Filter (signal processing) Digital filter Mathematics Group (periodic table) Computer science Physics

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Photonic and Optical Devices

Physical Sciences → Engineering → Electrical and Electronic Engineering

Mechanical and Optical Resonators

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Advanced MEMS and NEMS Technologies

Physical Sciences → Engineering → Electrical and Electronic Engineering

A maximally flat group delay recursive digital filter with controllable magnitude

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