Module 3 : Sampling and Reconstruction
Lecture 26 : Ideal Low Pass Filter
 
   Conclusion:
   In this lecture you have learnt:
analog filters can NEVER give linear phase response .
Hence, we can design analog filters as near to an ideal filter in terms of magnitude response, but can not really make ideal filter .
Hold Filters can be used to get approximation by a Maximally Flat Sampling i.e fs >> 2fm.

There are 2 types of distortion: Baseband Spectrum Distortion (Sinc Distortion)

                                                        & Aliased Component Distortion.
The ZOH Sampled Signal xZOH(t) can be regarded as the convolution of ho(t) and a sampled signal xp(t).
  Congratulations, you have finished Lecture 26. To view the next lecture select it from the left hand side menu of the page
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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