CSE3213_04_AnalogDigitalSignalsW2012 part4

CSE3213_04_AnalogDigitalSignalsW2012 part4 - Simple Analog...

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16 Simple Analog Signals rate of signal change with respect to time change in a short span of time high freq. change over a long span of time low freq. signal does not change at all zero freq. signal never completes a cycle T= f=0, DC sig. signal changes instantaneously freq. signal completes a cycle in T=0 f= Time Domain Plot specifies signal amplitude at each instant of time does NOT express explicitly signal’s phase and frequency Frequency Domain Plot specifies peak amplitude with respect to freq. phase CANNOT be shown in the frequency domain Frequency in Simple Analog Signals
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17 One ‘spike’ in frequency domain shows two characteristics of the signal: spike position = signal frequency, spike height = peak amplitude. Analog signals are best represented in the frequency domain. Simple Analog Signals
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18 Simple Analog Signals http://hermes.eee.nott.ac.uk/teaching/cal/h61sig/sig0002.html Example [ time vs. frequency domain ]
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This note was uploaded on 02/14/2012 for the course CSE 3213 taught by Professor A during the Winter '10 term at York University.

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CSE3213_04_AnalogDigitalSignalsW2012 part4 - Simple Analog...

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