How to simulate multiplexing three signals on three different carriers

Using Matlab you are required to simulate multiplexing three signals on three different carriers where these signals are modulated using amplitude modulation suppressed carrier, then the three signals are restored using synchronous carrier demodulation.

your simulation should include all appropriate libraries, comments, figures, and demonstrations to show and illustrate: (a) The time and spectrum plot of all signals at each stage of the modulation and demodulation (b) The use of appropriate filters. (Hint: use “help bandpass” to know how to use BPF) (c) The ability of any user of the program to change the values of the carrier frequency, massage frequency and modulation index.

[Sulaymon Eshkabilov]

You can model your exercise in Simulink in a relatively straightforward way. All of these filter blocks are also available.

See this help doc:

https://www.mathworks.com/help/dsp/ref/lowpassfilter.html