2. Spectral purity
2.1 Definition
An ideal oscillator provides a signal of constant frequency ν 0 and amplitude V 0 : V(t) = V 0 cos (2πν 0 t).
In practice, noise sources internal to the oscillator circuit induce random modulation of the signal's phase and amplitude. The real signal is then represented by :
where ϕ(t) and α(t) are random variables...
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Spectral purity
Elementary operations and circuits
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