Transmission of Stationary Signals through Linear Systems
Signals produced in nature are almost never experienced in their original form. Usually, we have access to them after they pass through various sensing and/or transmission devices such as a voltmeter, for electric signals, the ear, for acoustic signals, the eye, for visual signals, a fiber optic cable, for wide-band Internet signals, etc. All of them impose restrictions on the signal being transmitted by attenuating different frequency components of the signal to a different degree. This process is generally called filtering and the devices that change the signal’s spectrum are traditionally called filters.
KeywordsPower Spectrum Autocorrelation Function Impulse Response Function Frequency Domain Analysis Time Domain Analysis
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