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Baldwin explains the underlying signal processing concepts that make the Fast Fourier Transform (FFT) algorithm possible.
Revised: Mon Oct 19 13:36:25 CDT 2015
This page is included in the following book:
Digital Signal Processing - DSP
Table of contents
Preface
Programming in Java doesn't have to be dull and boring. In fact, it's
possible to have a lot of fun while programming in Java. This module wastaken from a series that concentrates on having fun while programming in
Java.
Viewing tip
I recommend that you open another copy of this module in a separate
browser window and use the following links to easily find and view the Figuresand Listings while you are reading about them.
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Figure 1. Transform of pulse with negative slope.
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Figure 2. Transform of pulse with positive slope.
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Figure 3. Transform of the sum of two pulses.
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Figure 4. Transform of an impulse with no shift.
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Figure 5. Transform of an impulse with a shift equal to one sample interval and a negative value.
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Figure 6. Transform of an impulse with a shift equal to two sample intervals and a positive value.
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Figure 7. Transform of an impulse with a shift equal to four sample intervals and a positive value.
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Figure 8. Transform of a complex impulse with a shift equal to two sample intervals.
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Figure 9. Case A. Transform of a real sample with two non-zero values.
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Figure 10. The numeric output for Case A.
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Figure 11. Case B in graphical form.
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Figure 12. Case B output in numeric form.
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Figure 13. The graphic form of Case C.
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Figure 14. Case C output in numeric form.
Listings
General discussion
The purpose of this module is to help you to understand how the
Fast Fourier Transform (FFT) algorithm works. In order to understand theFFT, you must first understand the Discrete Fourier Transform (DFT). I
explained how the DFT works in an earlier module titled
Fun with Java, How and Why Spectral Analysis Works .
Questions & Answers
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Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
First twenty elements with their valences
what is the best way to define periodic table for jamb
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what is isolation of organic compounds
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
an increase in the pressure of a gas results in the decrease of its
definition of the periodic table
what were atoms composed of?
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Source:
OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
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