Pretty easy, overall.
Course Overview:
Reasonable variety of topics for an introductory course on signals.
Course highlights:
Goes over difference equations (discrete version of differential equations), Fourier series and transforms, and a few important theorems such as Nyquist.
Hours per week:
3-5 hours
Advice for students:
Do all the homework assignments, of course. Look at past exams. It's pretty easy if you just remember how to do the few types of problems you're expected to know.