June 1998
Intermediate to advanced
688 pages
12h 39m
English
Content preview from LabVIEW Signal Processing
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2 Signal Generation
Normalized Frequency
In the analog world, a signal frequency is measured in Hz or cycles per second. But the digital system often uses a digital frequency, which is the ratio between the analog frequency and the sampling frequency:
This digital frequency is known as the normalized frequency. Its units are cycles/sample.
Some of the Signal Generation VIs use an input frequency control, f, that is assumed to use normalized frequency units of cycles per sample. This frequency ranges from 0.0 to 1.0, which corresponds to a real frequency range of 0 to the sampling frequency fs. This frequency also wraps around 1.0, so that a ...
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