Continuous-time vs. discrete-time signals

Continuous-time signal #1 

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Sample discrete-time signal (continuous-time to discrete-time conversion)

Adjust sampling rate below (in Hz) to see different sampling results. 

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Sample discrete-time signal (continuous-time to discrete-time conversion, very undersampled)

Adjust sampling rate below (in Hz) to see different sampling results. 

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Continuous-time signal #2 

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Sample signal (continuous-time to discrete-time conversion)

Adjust sampling rate below (in Hz) to see different sampling results. 

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Converted by Mathematica      January 13, 2003