Frequency Spectra and Frequency Response in the Complex Plane |
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Abstract: | By plotting and with the aid of the digital computer, the imaginary versus real components of Fourier frequency spectra and frequency response on the complex plane, a far greater insight into system behavior is obtained than is otherwise possible. The effects of varying the position, length, and height of a single rectangular pulse on its Fourier frequency spectrum are demonstrated clearly. The frequency response of a system is graphed on the complex plane as the ratio of output to input frequency spectra. |
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