Signals and systems Definition and 57 Threads

  1. K

    Signals and Systems coursework help

    Homework Statement Detmerine the Power and rms value for each of the following signals: a)5 + 10cos(100t+pi/3) ... more signals The Attempt at a Solution It's hard to right out integral signs or I don't know the way to do so I'll use I(lower bound, upper bound) to denote an...
  2. K

    Signals and Systems coursework help:

    This is kind of a homework topic, but not. Long story short, my beginning of my college career has been horrible in the academic standpoint. Bad calculus classes, a change of major, and 2 1/2 years later I sit staring at my signals book with no clue how to approach any of the problems...
  3. L

    Understanding Signals and Systems: Sampling, DFT, and Aliasing Explained

    hey guys. Just wanted to know if you guys agree with my answers: An analogue signal of 1 s duration is sampled at 512 equally spaced times and its DFT is computed. a) what is the separation in rad/s between the successive frequency components? My ans: 2pi/512 b)what is the highest...
  4. R

    Solutions for Signals and Systems (2nd Edition) by Kamen and Heck

    Hi I am looking for the solution manual for Fundamentals of Signals and Systems Using the Web and MATLAB (2nd Edition) by Ed Kamen, Bonnie Heck I need most of the solutions at least. If you could help it would be greatly appreciated. I will do anything to get the solutions. Please HELP.
  5. L

    Signals and systems - zero state response

    hey something is really confusing me... we are given this impulse response h[k] = 2d[k] +((0.8)^k).u[k] + (2(-0.4)^k).u[k] where d is delta... anyway the question then asks: using the convolution, determine the ZERO STATE RESPONSE for an input signal x[k] = 2u[k+2] - 2u[k-4]. Now...
  6. L

    How Can Shifting a Non-Causal System by Two Units Make It Causal?

    hey guys - attached is a solution to a signals related question. Given the system - we must calculate the impulse reponse. please click on attachment to see what I am talking about. two things confuse me: 1)the system is evidently non-causal, but here they decide to shift the entire...
  7. M

    Calculating Signal Energy for Given Functions

    I have a question about finding the signal energy of a signal? What exactly are you suppose to do when you are given a certain function like x(t)=rect(t) sin(2*pi*t)?
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