What Is this Course All About ? 
  • Introduction.
  • Basic operations on signals.
  • Basic system properties.
  • Time domain analysis of continuous & discrete time systems.
  • Fourier series analysis of CTS and DTS.
  • Fourier transform analysis of CTS and DTS.
  • Laplace transform.
  • Z- transform.
  • Sampling.
  • Random signals & systems.

What is Signal?

  • signal may be considered as an interruption in a field of constant energy transfer. 
  • Example: Electromagnetic field of a telegraph circuit, voice signal, video signal. 

What is System?

  • System is a device or combination of devices.  system is a system which describes the information exchange between two points.  A system is any process that produces an output signal in response to an input signal.
  • Example: Communication System ( transmitter, receiver)


Quantity which remains same with change in time is a signal. (True/False)


Single variable signals depends on more than one variable. (True/False)


System alone can't acheive any thing. (True/False)


Output signal depends on more number of independent variables as compared to input signal. (True/False)


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