CSE3213_04_AnalogDigitalSignalsW2012 part 5

CSE3213_04_AnalogDigitalSignalsW2012 part 5 - Composite...

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21 Composite Analog Signals (cont.) Example [ periodic square wave ] ... (5f)t) sin(2 4A (3f)t) sin(2 4A ft) sin(2 π 4A s(t) π π π three harmonics adding three harmonics With three harmonics we get an approximation of a square wave. To get the actual square, all harmonics up to should be added. http://www.nst.ing.tu-bs.de/schaukasten/fourier/en_idx.html http://www.phy.ntnu.edu.tw/java/sound/sound.html No DC component!!!
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22 Composite Analog Signals (cont.) Examples [ periodic and non-periodic signals ]
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23 http://hermes.eee.nott.ac.uk/teaching/cal/h61sig/sig0009.html Composite Analog Signals (cont.) Example [ composite analog signal ]
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24 Composite Analog Signals (cont.) range (set) of frequencies that signal contains Frequency Spectrum
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CSE3213_04_AnalogDigitalSignalsW2012 part 5 - Composite...

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