Week of 11/5

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[[Image:Squarewave.png]]
 
[[Image:Squarewave.png]]
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I imported the data and plotted it along with its periodogram.
 
I imported the data and plotted it along with its periodogram.
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[[Image:Sqwavexmgr.png]]
 
[[Image:Sqwavexmgr.png]]
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Notice that only the odd harmonics are present.
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Here is a mathematica notebook that simulates this.
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{{mathematica|filename=fouriertransformexamples.nb|lots of fourier transform examples}}

Revision as of 16:20, 5 November 2007

Here is the display of my oscilloscope when the input is a 1000 pulse per second output of a time-code generator. (The time-code generator is a device that locks to the 10 MHz output of an atomic clock and produces 1 Hz or 1 KHz pulse trains as well as human readable time synchronized to the atomic standard.)

Squarewave.png



I imported the data and plotted it along with its periodogram.


Sqwavexmgr.png


Notice that only the odd harmonics are present.

Here is a mathematica notebook that simulates this.

Mathematica.png Download {{{title}}}
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