By Boaz Porat
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A complete, useful and up to date exposition on electronic sign processing. either mathematical and beneficial, this e-book makes use of a rigorous method of aid readers research the speculation and perform of DSP. It discusses useful spectral research, together with using home windows for spectral research, sinusoidal sign research, and the impact of noise. It additionally covers FIR and IIR filters, together with specified layout techniques and MATLAB instruments.
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Additional info for A Course in Digital Signal Processing
13a) disguises the existence of negative frequencies. However, for complex signals, positive and negative frequencies are fundamentally distinct. For example, the complex signal eJwot with Wo > 0 is different from a corresponding signal with Wo < O. Complex signals are similarly difficult for beginners to comprehend, since such signals are not commonly encountered as physical entities. Rather, they usually serve as convenient mathematical representations for real signals of certain types. , in sinusoidal steady-state analysis of electrical circuits).
Like Chapter 2, it contains only material needed as a prerequisite for later chapters. Three chapters are devoted to digital filtering. Chapter 8 introduces the concept of filtering, filter specifications, magnitude and phase properties of digital filters, and review of digital filter design. Chapters 9 and 10 discuss the two classes of digital filters: finite impulse response (FIR)and infinite impulse response (IIR),respectively. The focus is on filter design techniques and on properties of filters designed by different techniques.
Po 12] The Dirac delta function is not a function in the usual sense, since it is infinite at t = O. There is a mathematical framework that treats the delta function (and its derivatives) in a rigorous manner. This framework, called the theory of distributions, is beyond the scope of this book; see Kwakernaak and Sivan [1991, Supplement C] for a relatively elementary treatment of this subject. We shall continue to use the delta function but not in rigor, as common in engineering books. 4. [po 13] A common misconception is that every LTI system has an impulse response.
A Course in Digital Signal Processing by Boaz Porat