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 Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6249

title: Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems
authors: Lavrador, P.M.
Carvalho, N. Borges de
Pedro, J.C.
keywords: Correlation
Nonlinear distortion
Spectral analysis
Volterra series
Approximation theory
Computer simulation
Correlation methods
Signal to noise ratio
Spectrum analysis
Dynamic nonlinear systems
Finite Volterra series
Nonlinear distortion
issue date: 2004
abstract: This paper presents a new figure-of-merit to evaluate signal-to-noise and distortion (S1NAD) ratio degradation in nonlinear systems, herein referred to as the noise and distortion figure (NDF). In order to obtain a mathematical formula for this NDF, the best linear approximation calculation is presented for memoryless and dynamic nonlinear systems, which can be modeled by a finite Volterra series. To the best of the authors' knowledge, this is the first time such an attempt of calculating the NDF for a nonlinear and dynamic system is made. NDF results are discussed in both types of systems by means of numerical simulations of systems up to the third order.
URI: http://hdl.handle.net/10773/6249
ISSN: 0018-9480
publisher version/DOI: http://dx.doi.org/10.1109/TMTT.2004.823543
source: IEEE Transactions on Microwave Theory and Techniques
appears in collectionsDETI - Artigos

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