Demonstration of Fourier transformation
by aasim Azooz
19 Apr 2010
(Updated 10 Feb 2012)
The first file construct signals from Fourier terms
The second file analyzes actual signals
|
Watch this File
|
| File Information |
| Description |
These are two M-files “fourier1” and “fourier2” The first is designed to demonstrate how triangular, rectangular, saw tooth, half wave and full wave rectified signals can be built from superposition of a predefined no of Fourier harmonic terms. It demonstrates how increasing the number of terms included in the summation will improve the signal shape.
The second file is useful for analyzing actual audio signals connected to the PC line in port of the sound card. The out put of the program is plot showing all harmonic amplitudes contained in the signal.. It can be used with a microphone, a signal generator, or with any sound pre-recorded or saved and being played on the PC.
|
| Required Products |
Data Acquisition Toolbox
|
| MATLAB release |
MATLAB 6.5 (R13)
|
|
Tags for This File
|
| Everyone's Tags |
|
| Tags I've Applied |
|
| Add New Tags |
Please login to tag files.
|
| Updates |
| 10 Feb 2012 |
more flexible data sampling rates, and number of data points |
|
Contact us at files@mathworks.com
