Distortion Contribution Analysis with the Best Linear Approximation

Autor:	Cooman, Adam, Bronders, Piet, Peumans, Dries, Vandersteen, Gerd, Rolain, Yves
Rok vydání:	2016
Předmět:	Computer Science - Systems and Control
Druh dokumentu:	Working Paper
Popis:	A Distortion Contribution Analysis (DCA) obtains the distortion at the output of an analog electronic circuit as a sum of distortion contributions of its sub-circuits. Similar to a noise analysis, a DCA helps a designer to pinpoint the actual source of the distortion. Classically, the DCA uses the Volterra theory to model the circuit and its sub-circuits. This DCA has been proven useful for small circuits or heavily simplified examples. In more complex circuits however, the amount of contributions increases quickly, making the interpretation of the results difficult. In this paper, the Best Linear Approximation (BLA) is used to perform the DCA instead. The BLA represents the behaviour of a sub-circuit as a linear circuit with the unmodelled distortion represented by a noise source. Combining the BLA with a classic noise analysis yields a DCA that is simple to understand, yet capable to handle complex excitation signals and complex strongly non-linear circuits. Comment: Preprint of the paper submitted to the IEEE transactions on Circuits and Systems - I: Regular papers
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1610.08332 Zobrazit plný text záznamu View this record from Arxiv