Abstract
Noise, as an undesired signal that often overlaps with the desired information contained in a signal, must be removed or at least reduced to an acceptable level. Before designing a filtering system it is important to know the source of noise and its quality. Its representation using electrical circuits is a matter of interest in many fields of applied engineering. It can be represented as a one-dimensional and a bidimensional signal. The latter case is interesting in the field of image processing. The measurement of noise is not easy even when we can use a specific modeling.
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Acknowledgments
Special thanks go to A. De Risi, D. Laforgia, A. Ficarella,. M. Potenza, F. Naccarato, and G. Brida for their time and for putting themselves at our disposal in discussions on some of the issues discussed in this chapter.
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Lay-Ekuakille, A. (2013). Noise. In: Optical Waveguiding and Applied Photonics. Lecture Notes in Nanoscale Science and Technology, vol 10. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5959-0_8
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DOI: https://doi.org/10.1007/978-1-4614-5959-0_8
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