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application of fourier series in engineering ppt
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I want application of fourier series in engineering ppt
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The Fourier series was the precursor of the Fourier transform. The Fourier series itself is only useful for periodic signals. In the real world, we generally do not receive too many deterministic or periodic signals. The only ones I can think of are those generated in the laboratory or perhaps oscillators in the communication circuits for the modulation of a signal. Even a normal voice signal is complicated and not periodic. So the Fourier series, as far as I know, is not really useful in the real world unless it finds deterministic signals.

The Fourier transform is especially useful because it can handle aperiodic signals. I would say that all the signals you find in the real world are aperiodic or nondeterministic. Using the Fourier transform you can see a real-world signal (which complies with Dirichlet's conditions) and decompose its frequency so that sunlight passes through a prism and reveals the individual colors (frequencies) that make up the white light.
 

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