Simulation of ASK, FSK, and PSK using MATLAB Simulink (with Online Simulator)

📘 Overview
🧮 How to use MATLAB Simulink
🧮 Simulation of ASK using MATLAB Simulink
🧮 Simulation of FSK using MATLAB Simulink
🧮 Simulation of PSK using MATLAB Simulink
🧮 Simulator for ASK, FSK, and PSK
🧮 Digital Signal Processing Simulator
📚 Further Reading

Simulation of Amplitude Shift Keying (ASK) using MATLAB Simulink

In Simulink, we pick different components/elements from MATLAB Simulink Library. Then we connect the components and perform a particular operation.

Result

A sine wave source, a pulse generator, a product block, a mux, and a scope are shown in the diagram above. The pulse generator generates the '1' and '0' bit sequences. Sine wave sources produce a specific amplitude and frequency. The scope displays the modulated signal as well as the original bit sequence created by the pulse generator. Mux is a tool for displaying both modulated and unmodulated signals at the same time.

The result section shows that binary '1' is modulated by a certain sine wave amplitude of 1 Volt, and binary '0' is modulated by zero amplitude.

Simulation of Frequency Shift Keying (FSK) using MATLAB Simulink

Result

The diagram above shows two sine wave sources, a pulse generator, a switch, a mux, and a scope. The pulse generator generates the '1' and '0' bit sequences. Two different frequencies are provided by sine wave sources. The result section shows that binary '1' is modulated at a higher frequency than binary '0'.

Simulation of Phase Shift Keying (PSK) using MATLAB Simulink

Result

In the result section, binary '1' is modulated with a 180-degree phase shift (corrected), whereas binary '0' is modulated with the original 0-degree phase.

Simulator for binary ASK, FSK, and PSK Modulations

Choose Modulation:

Message Bits (e.g. 1,0,1,0):

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