Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/81701
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Type: Journal article
Title: Identification of static distortion by noise measurement
Author: Gunn, L.
Allison, A.
Abbott, D.
Citation: Electronics Letters, 2013; 49(21):1321-1323
Publisher: IEE-Inst Elec Eng
Issue Date: 2013
ISSN: 0013-5194
1350-911X
Statement of
Responsibility: 
L.J. Gunn, A. Allison and D. Abbott
Abstract: Many active devices exhibit gross nonlinearity, which is traditionally mitigated using negative feedback. In those cases where negative feedback is not desired, compensation for the distortion can be carried out at the postprocessing stage by inverting the transfer function of the device. A new technique is demonstrated where the inherent noise in the system is exploited to estimate the required transformation, thus reducing distortion without the need for an offline characterisation step. It is demonstrated that the proposed technique can reduce the total harmonic distortion of a common-emitter amplifier from about 10% to <; 1%.
Rights: © The Institution of Engineering and Technology 2013
RMID: 0020133026
DOI: 10.1049/el.2013.2547
Appears in Collections:Electrical and Electronic Engineering publications

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