The following steps will guide you through the Matlab exercise
(Note the % indicates a comment and need not be entered.)
In the Matlab Command window type:
x = [1:1:140]; % sets up the domain
yCarrier = cos(pi*x/8); % create a sinusoid to act as a carrier
plot(x,yCarrier); % and plot it
ySignal = rand(size(yCarrier)); %create a signal to be transmitted
plot(x,ySignal); % and plot that too
ySum = yCarrier + ySignal; % create an average signal
yDiff = yCarrier – ySignal; % create a difference signal
(a)
Using only linear combinations of the ySum and yDiff signals, recover the ySignal and plot it.
(b)
Confirm that the ySignal recovered in (a) is equal to the original
(c)
Give an example of a biological signal which could be analyzed using the model above. Be specific by identifying the components of the biological process as in the model above.
