INFORMAL DEVELOPMENT OF FOURIER SERIES (CHAPTER 11.05)

 

Companion Node Observation: Part 2 of 3

 

By Duc Nguyen

TOPIC DESCRIPTION
 
Through a specific case example, with N=2**4=16 and graphical reprentations, this video lecture will explain how to identify the "companion nodes", how to essentially skip the computations involved with the "companion nodes", and how to save the "computer memory" during the entire "matrix times vector inner and outer product" process. "Distance" between a pair of companion nodes (corresponding to any L-th vector, where L=1, 2, ..., r-1; and N=2**r) is explained. By introducing the notation W**P, general formulas for computing the pairs of companion nodes (corresponding to any L-th level vector) are derived and explained. Example for the case N=2**(r=4)=16, and graphical representation form are used to facilitate the explanation of "companion nodes"
ALL VIDEOS FOR THIS TOPIC
 

Informal Development of Fast Fourier Transform: Part 1 of 3 [YOUTUBE 09:59]

Informal Development of Fast Fourier Transform: Part 2 of 3 [YOUTUBE 12:39]

Informal Development of Fast Fourier Transform: Part 3 of 3 [YOUTUBE 09:46]

Fast Fourier Transform: Factorized Matrix & Operation Count: Part 1 of 4 [YOUTUBE 14:08]

Fast Fourier Transform: Factorized Matrix & Operation Count: Part 2 of 4 [YOUTUBE 14:48]

Fast Fourier Transform: Factorized Matrix & Operation Count: Part 3 of 4 [YOUTUBE 13:45]

Fast Fourier Transform: Factorized Matrix & Operation Count: Part 4 of 4 [YOUTUBE 11:49]

Fast Fourier Transform: Companion Node Observation: Part 1 of 3 [YOUTUBE 11:22]

Fast Fourier Transform: Companion Node Observation: Part 2 of 3 [YOUTUBE 12:56]

Fast Fourier Transform: Companion Node Observation: Part 3 of 3 [YOUTUBE 09:01]

Fast Fourier Transform: Determination of W^P: Part 1 of 4 [YOUTUBE 13:34]

Fast Fourier Transform: Determination of W^P: Part 2 of 4 [YOUTUBE 09:31]

Fast Fourier Transform: Determination of W^P: Part 3 of 4 [YOUTUBE 07:36]

Fast Fourier Transform: Determination of W^P: Part 4 of 4 [YOUTUBE 09:41]

Fast Fourier Transform: Unscrambling the FFT: Determination of W^P: Part 1 of 3 [YOUTUBE 15:07]

Fast Fourier Transform: Unscrambling the FFT: Determination of W^P: Part 1 of 3 [YOUTUBE 15:14]

Fast Fourier Transform: Unscrambling the FFT: Determination of W^P: Part 1 of 3 [YOUTUBE 14:32]
COMPLETE RESOURCES
  Get in one place the following: a textbook chapter, individual YouTube lecture videos, PowerPoint presentation, Worksheet and Multiple Choice Questions on Informal Development of Fourier Series.