Signals and Systems

SHORT QUESTIONS AND ANSWERS

 

Q1. Define analog and digital filters.

Ans.:

Analog Filter

The inputs and outputs both are continuous time signals in analog filters.

Digital Filter

The inputs and outputs both are discrete time signals in analog filters.

Q2. Give the specifications of (i) Low pass filter (ii) High pass filter (iii) Band pass filter and (iv) Band stop filter

Ans.:

1. Low Pass Filter:

   For a low pass filter, its specifications in terms of its frequency response is given below:

    

   

    

2. High Pass Filter:

   For a high pass filter, its specifications in terms of its frequency response is given below:

    

    

3. Band Pass Filter:

   For a band pass ...