GitHub

DIFFT: Double-Interpolation FFT for Accurate Harmonic Extraction

DIFFT is an open-source collection of implementations for the Double-Interpolation FFT method proposed in the paper "An Improved Accuracy Harmonic Extraction Method for Microcontrollers" (Tian & Zhang ...
GitHub

gigalgi/dsp-arduino-python-fft

Real-time data acquisition from Arduino over serial and frequency analysis using the Fast Fourier Transform (FFT). Built as a practical signal processing toolkit for embedded sensor systems. Captures ...
Scientific Research Publishing

Enhanced Wideband Frequency Estimation via FFT: Leveraging Polynomial Interpolation and Array Indexing ()

Accurate frequency estimation in a wideband digital receiver using the FFT algorithm encounters challenges, such as spectral leakage resulting from the FFT’s assumption of signal periodicity.
IEEE

Algorithm of the Cavity Length Demodulation for Optical Fiber F-P Sensors Based on Nuttall Window Four-spectrum-line Interpolation FFT

Abstract: When the fast Fourier transform (FFT) algorithm is used to analyze demodulate interference signal, nonsynchronous sampling of the interference optical spectrum would cause spectral leakage ...