Question

You're expected to write a function file which generates DBS-SC given below. Label the graph carefully. You may use comments to denote your logic. Save your m-file and graphs (as jpeg or eps) to a doc file. Your function should have three parameters; message signal, time axis and frequency of carrier.

y(t)=m(t)cos(2πft)

Answer 1

The question pertains to writing a MATLAB function for generating a DBS-SC signal, which involves creating and labeling a graph of the modulated signal, y(t), defined by the multiplication of a message signal and a cosine function of a carrier wave at a specific frequency.

Step-by-step explanation:

The student's question revolves around the task of writing a function in MATLAB (or a similar programming environment) to generate a Double Balanced Sideband-Suppressed Carrier (DBS-SC) signal.

This signal is represented by the equation y(t) = m(t) cos(2πft), where m(t) is the message signal, f is the carrier frequency, and t is the time axis.

The function will require the creation of a MATLAB script that takes the given parameters and calculates the DBS-SC signal. Labels for the graph should be added to ensure clarity, and comments within the MATLAB script can guide future readers through the logic of the program. The outcome, being a visual representation of the signal, must be saved as a graphical file such as JPEG or EPS. A phase shift, represented by the Greek letter phi (φ), should be taken into account if the message signal exhibits any phase deviation from the standard cosine function.