FFT, Phase Shift Keying.
A PSK signal consisting a sinusoidal carrier at
w1 whose phase is switched between 0°
and f° at a rate
When f° = 180° then the
frequency spectrum consists of the 2 sided spectra of a
square pulse train without a component at the carrier frequency.
For f° different from 180°,
the carrier is present.
This spectrum is narrower than that of an FSK signal.
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COPYRIGHT © 2007 Cuthbert Nyack.