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https://hdl.handle.net/2440/44787
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Type: | Conference paper |
Title: | SNDR enhancement in noisy sinusoidal signals by non-linear processing elements |
Author: | Martorell, F. McDonnell, M. Abbott, D. Rubio, A. |
Citation: | Proceedings of SPIE - The International Society for Optical Engineering : Noise and Fluctuations in Circuits Devices and Materials / M. Macucci, L. K. Vandamme, C. Ciofi, M. B. Weissman (eds.), Vol. 6600 |
Publisher: | International Society for Optical Engineering |
Publisher Place: | USA |
Issue Date: | 2007 |
Series/Report no.: | PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) |
ISBN: | 0819467375 9780819467379 |
ISSN: | 0277-786X 1996-756X |
Conference Name: | Noise and Fluctuations in Circuits Devices and Materials (May 2007 : Florence, Italy) |
Editor: | Macucci, M. Vandamme, L.K.J. Ciofi, C. Weissman, M.B. |
Abstract: | We investigate the possibility of building linear amplifiers capable of enhancing the Signal-to-Noise and Distortion Ratio (SNDR) of sinusoidal input signals using simple non-linear elements. Other works have proven that it is possible to enhance the Signal-to-Noise Ratio (SNR) by using limiters. In this work we study a soft limiter non-linear element with and without hysteresis. We show that the SNDR of sinusoidal signals can be enhanced by 0.94 dB using a wideband soft limiter and up to 9.68 dB using a wideband soft limiter with hysteresis. These results indicate that linear amplifiers could be constructed using non-linear circuits with hysteresis. This paper presents mathematical descriptions for the non-linear elements using statistical parameters. Using these models, the input-output SNDR enhancement is obtained by optimizing the non-linear transfer function parameters to maximize the output SNDR. |
Description: | ©2007 COPYRIGHT SPIE--The International Society for Optical Engineering |
DOI: | 10.1117/12.724688 |
Grant ID: | AP2002-2600 TEC2005-02739/MIC |
Published version: | http://dx.doi.org/10.1117/12.724688 |
Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications |
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