Signals and Systems Analysis Lab

  1. Familiarizing with MATLAB/OCTAVE/SCI-LAB.
  2. To generate basic signals such as impulse, unit step, exponential and sinusoidal signals in continuous and discrete-time domains using MATLAB/OCTAVE/ SCI-LAB.
  3. Implement the signal modification techniques like time scaling, time shifting, multiplication, amplitude scaling for a given continuous and discret-time signals using MATLAB/OCTAVE/ SCI-LAB.
  4. To determine the impulse and step response of a system given the difference equation or differential equation. Determine whether the system is linear, time invariant and stable from the impulse or step response.
  5. To implement convolution, sum and integration given the impulse response and input signal in MATLAB/OCTAVE/SCI-LAB. Find the auto correlation and cross correlation for given signals. Implement correlation from convolution sum/integration.
  6. Find the spectral components of a given signal using Fourier series and Fourier transform. Study the nature of the transformation when the signal is: (I). real and periodic and (ii). real and aperiodic. (Check whether the Parseval’s relation holds or not.)
  7. Find the Laplace transform of a continuous time signal along with the poles-zero plot . Comment on the nature of the signal/system such as stability, causality from the pole zero plot. Show that, Laplace transform converges to Fourier transform when evaluated on the Imaginary axis.
  8. Find the Z-transform of a discrete-time signal along with the pole-zero plot. Comment on the nature of the signal/system such as stability, causality from the pole-zero plot. Show that, Z-transform converges to Fourier transform when evaluated on the unit circle.