Communications Blockset

Analog Modulation Features of the Blockset

The figure below shows the modulation techniques that the Communications Blockset supports for analog signals. As the figure suggests, some categories of techniques include named special cases.

For a given modulation technique, two ways to simulate modulation techniques are called baseband and passband. Baseband simulation, also known as the lowpass equivalent method, requires less computation. This blockset supports both baseband and passband simulation. Since baseband simulation is more prevalent, this guide focuses more on baseband simulation.

The modulation and demodulation blocks also let you control such features as the initial phase of the modulated signal and post-demodulation filtering.

Accessing Analog Modulation Blocks

Baseband Modulated Signals Defined