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Lecture 4: Bandwidth of a Signal

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Schedule :: Periodic Signals :: Fourier Spectrum :: Symmetry :: Fundamental Frequency :: Smoothness of the Function :: Fourier Series :: Exponential Series :: Spectra :: Bandwidth :: Energy of Signals :: Geometric Viewpoint

The bandwidth of a signal is the amount of "frequency'' required to sustain the signal unmodified. Actually, there are about a bajillion different definitions for bandwidth, depending on the application of the problem.


\begin{example}Spectra on p. 445. The bandwidth is the highest nonzero frequency $-$ the lowest nonzero frequency $=9-0 = 9$. \vspace*{3in} \par\end{example}

\begin{example}The bandwidth of the square wave function is infinite! What is of... ...Just what is \lq\lq far enough'' depends on the particular application. \end{example}

\begin{example}In this example, we will find the F.S. of an important function, ... ...ot decay! $\vert D_n\vert = \frac{1}{T_0}$ and $\angle D_n = 0$. \end{example}

Copyright 2008, by the Contributing Authors. Cite/attribute Resource. admin. (2006, May 23). Lecture 4: Bandwidth of a Signal. Retrieved November 22, 2009, from Free Online Course Materials — USU OpenCourseWare Web site: http://ocw.usu.edu/Electrical_and_Computer_Engineering/Signals_and_Systems/4_10node10.html. This work is licensed under a Creative Commons License. Creative Commons License
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