CHAPTER 3 PART 3 FOURIER TRANSFORM APPLICATION - FILTER.pdf - 1 Outline Fourier Transform Application Filter Modulation\/Demodulation 2 Fourier Transform

CHAPTER 3 PART 3 FOURIER TRANSFORM APPLICATION - FILTER.pdf...

This preview shows page 1 - 7 out of 14 pages.

1
Image of page 1
Outline 2 Fourier Transform Part III Fourier Transform Application Filter Modulation/Demodulation
Image of page 2
FILTER 3 Filtering : useful part of a signal is separated from undesirable The range of frequencies that pass through a filter is called the pass-band , whereas the frequencies that do not pass through the filter is referred to as the stop-band . The most common types of filters are: High-pass filter, Low- pass filter, Band-pass filter, band stop filter
Image of page 3
High-Pass Filter (HPF) 4 Characterized by a stop-band that extends from to and a pass-band that extends from to infinity, where is the cutoff frequency of the filter. 0 c c c
Image of page 4
Low-Pass Filter (LPF) 5 Characterized by a pass-band that extends from to and a stop-band that extends from to infinity. 0 c c
Image of page 5
Example 1: Application of High Pass Filter 6 2 signals have been multiplied together that yields: Assume a certain application requires; , which can be obtained using HPF.
Image of page 6
Image of page 7

You've reached the end of your free preview.

Want to read all 14 pages?

  • Fall '20
  • High-pass filter, Band-pass filter, Low-pass filter, cos 200t 

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes