EE200_Weber_11-20

EE200_Weber_11-20 - EE 200 Sampling In order for digital...

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1 EE 200 Sampling In order for digital hardware to operate on a continuous signal, the signal must first be changed into a discrete signal. The action of changing the continuous signal into a discrete signals is known as sampling. The time span between samples, T , the called the sampling interval. Sampler T Input signal Real Complex Output signal Integer Complex
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2 EE 200 Sampling For a temporal signal, the sampling interval is specified in units of time (e.g. 4 microseconds per sample). The inverse of the sampling interval is the sampling frequency. The f s value is sometimes just specified in Hertz. f s = 1 T samples/sec " s = 2 # T radians/sec
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3 EE 200 Sampling For a spatial signal, the sampling interval is in units of distance between each sample (e.g. 2mm/sample). The sampling frequency for sampling a spatial signal is the inverse of the sampling interval and is in units of samples /distance. For example, an image scanner samples a continuous
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This note was uploaded on 12/03/2008 for the course EE 200 taught by Professor Zadeh during the Fall '08 term at USC.

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EE200_Weber_11-20 - EE 200 Sampling In order for digital...

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