Analyze the phenomenon of spectral leakage with illustrations
| Date | Contributor | Description | Rating |
|---|---|---|---|
| 20 Jan 2011 | Mathuranathan Viswanathan |
Frequency Transform is used to study a signal's frequency domain characteristics. When using FFT to study the frequency domain characteristics of a signal, there are two limits : 1) The detectability of a small signal in the presence of a larger one ; 2) frequency resolution - which distinguishes two different frequencies. In practice, the measured signals are limited in time and the FFT calculates the frequency transform over a certain number of discreet frequencies called bins. This article analyzes the effect of having limited measurement interval and its consequence of "Spectral Leakage" phenomenon. Matlab Codes are also given at the end of the article to simulate the illustrations |
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| Tag | Applied By | Date/Time |
|---|---|---|
| blog | peteryfy | 9 Feb 2011 at 2:19am |
| blog | Helen Chen | 2 Feb 2011 at 10:35am |
| time domain | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| fast fourier transform | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| dft | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| effects of fft | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| windowing technique | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| windowing | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| windows | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| time interval | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| discrete fourier transform | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| frequency | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| frequency domain | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| frequency spectrum | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| spectrum | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| fourier transform | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| fft | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| spectral leakage | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| communications | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| signal processing | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |
| simulation | Mathuranathan Viswanathan | 20 Jan 2011 at 10:04pm |