Introduction to Nonlinear Systems
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The subject of this book covers three different specific academic areas: nonlinear systems, adaptive filtering and system identification. In this chapter, we plan to briefly introduce the reader to the area of nonlinear systems.
The topic of system identification methods is discussed in chapter 4. The topic of adaptive (filtering) signal processing is introduced in chapter 5. Before discussing nonlinear systems, we must first define a linear system, because any system that is not linear is obviously nonlinear.
Most of the common design and analysis tools and results are available for a class of systems that are called linear, time-invariant (LTI) systems. These systems are obviously well studied (Lathi 2000), (Lathi 2004), (Kailath 1979), (Philips 2003), (Ogunfunmi 2006).
KeywordsNonlinear System Volterra Series Volterra System Unit Impulse Response Volterra Filter
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