What does this have to do with sidebands? A sideband could only have a bandwidth of 0Hz or less if Wc was actually less than Wm, no? I applied the nyquist theory (sampling) to this, and concluded that the carrier frequency must be at least twice that of the message frequency. Not sure if this is...
Homework Statement
Given a DSB -SC system, with a message limited to B Hz, what is the minimum usable value of ωc or f0 (carrier frequency)
Homework Equations
Nyquist theory? Not sure how to apply.
The Attempt at a Solution
Only attempt has been through research.
Homework Statement
I am trying to figure out how to graph the signal spectra of an AM signal where the message m(t) is multiplied by the carrier, which is sin^3 (wt) instead of cos (wt). I can do the FT but I do not know how to graph this since there are imaginary numbers as coefficients...
Homework Statement
Consider an LTI system with impulse response h(t) = (0.5sin(2t)/(t)
Find system output y(t) if x(t) = cos(t) + sin(3t)
Homework Equations
y(t) = x(t)*h(t)
The Attempt at a Solution
I am only familiar with doing much simpler convolutions using graphical...
I am looking for any program which would allow me to do one of the following:
1) Freedraw a graph and have a set number of samples taken from that graph and create a spreadsheet (x-y)
2) Freedraw a graph and have a best fit equation made
3) Given x-y arrays, create a best fit equation...