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System Simulator >
Discrete Time Analysis >
Baseband and Bandpass Signals and Noise Waveforms >
Bandpass Signals

Bandpass Signals

A baseband signal becomes a bandpass signal once it modulates an RF carrier. The general form of any bandpass signal is:

Where f_c is the carrier frequency and is the phase of the input modulated signal.

The quantity

is known as the complex envelope of the bandpass signal S(t). I_S(t) and Q_S(t) are the In-phase and Quadrature-phase baseband information-bearing signals.

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