Improvement of spectral resolution by signal padding method in the spatially modulated Fourier transform spectrometer based on a Sagnac interferometer
![Illustration of the effect of zero-padding. (a) 1-D rectangle function.... | Download Scientific Diagram Illustration of the effect of zero-padding. (a) 1-D rectangle function.... | Download Scientific Diagram](https://www.researchgate.net/profile/Khalid-El-Darymli/publication/265043400/figure/fig5/AS:392127277223942@1470501836437/llustration-of-the-effect-of-zero-padding-a-1-D-rectangle-function-b-Magnitude.png)
Illustration of the effect of zero-padding. (a) 1-D rectangle function.... | Download Scientific Diagram
To increase the FFT resolution, we add zero padding to the end of sampled data. What if we didn't add the zeroes at the end of the data, but copy the same
![Effect of changing sample rate, window duration and zero padding on DTFT and DFT - Signal Processing Stack Exchange Effect of changing sample rate, window duration and zero padding on DTFT and DFT - Signal Processing Stack Exchange](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Spectral_leakage_caused_by_%22windowing%22.svg/800px-Spectral_leakage_caused_by_%22windowing%22.svg.png)
Effect of changing sample rate, window duration and zero padding on DTFT and DFT - Signal Processing Stack Exchange
Zero-padding procedure for increasing the spatial resolution of the HOS... | Download Scientific Diagram
![DFT RESOLUTION, ZERO PADDING, AND FREQUENCY-DOMAIN SAMPLING | Chapter Three. The Discrete Fourier Transform DFT RESOLUTION, ZERO PADDING, AND FREQUENCY-DOMAIN SAMPLING | Chapter Three. The Discrete Fourier Transform](https://flylib.com/books/2/729/1/html/2/images/0131089897/graphics/03fig18.gif)