Interpolation via Fast Discrete Fourier Transform with Chebyshev extreme points Interpolation via Fast Discrete Fourier Transform with Chebyshev Extreme Points Interpolation is a fundamental concept in numerical analysis allowing us to esti 3 min read 22-10-2024 18
Simpe example if using NFFT3 library Understanding NFFT 3 Library A Simple Example The NFFT 3 library is an efficient tool for performing non uniform Fast Fourier Transform NFFT operations It is pa 3 min read 21-10-2024 24
PocketFFT++ usage: Forward/Backward transforms not giving back original data Understanding Pocket FFT Troubleshooting Forward and Backward Transforms In the realm of digital signal processing the Fast Fourier Transform FFT is an indispen 3 min read 20-10-2024 19
Undefined reference to clFFT Undefined reference to cl FFT A Guide to Solving This Compilation Error Have you encountered the dreaded undefined reference to cl FFT error while compiling you 3 min read 07-10-2024 26
Fourier Series fit for Triangular pulse in Python Unlocking the Secrets of Periodic Signals Fitting a Triangular Pulse with Fourier Series in Python Understanding periodic signals is crucial in various fields f 4 min read 05-10-2024 27
Slight error with created inverse DFT function in MATLAB Troubleshooting an Inverse DFT Function in MATLAB A Common Error and Solution The Discrete Fourier Transform DFT and its inverse IDFT are fundamental tools in s 2 min read 04-10-2024 24
Is there a way of detecting if a person is on escalator or not? Detecting Escalator Use A Deep Dive into Possibilities Have you ever wondered if technology could tell if someone is riding an escalator This seemingly simple q 2 min read 04-10-2024 54
Custom DFT implementation return reverse order of odd index answer Understanding and Correcting a Custom DFT Implementation Issue Reversed Odd Indices Problem You ve implemented a Discrete Fourier Transform DFT algorithm from s 2 min read 04-10-2024 31
How to achieve the linear convolution of a 100 sample time series and a 20 tap filter in the frequency domain? Achieving Linear Convolution of a Time Series and a Filter in the Frequency Domain In digital signal processing convolution is a fundamental operation that comb 3 min read 03-10-2024 33
ESP32 FFT I'm not getting the correct max frequency of the input signal Troubleshooting FFT on ESP 32 Why Your Max Frequency Might Be Off The ESP 32s built in FFT functionality is a powerful tool for analyzing signals in various app 3 min read 03-10-2024 29
Standard Fast DCT algorithm The Standard Fast DCT Algorithm A Deep Dive into Image Compression The Discrete Cosine Transform DCT is a fundamental building block in image and video compress 2 min read 03-10-2024 34
Confused about whether to use fftshift in the MATLAB code for implementing the S-FFT algorithm for simulation Fresnel diffraction Understanding fftshift in the S FFT Algorithm for Fresnel Diffraction Simulation Problem When simulating Fresnel diffraction using the S FFT algorithm in MATLAB 2 min read 03-10-2024 39
Do I have to normalize my input to the FFT? Do I Have to Normalize My Input to the FFT A Guide to Signal Processing Scenario You re working on a project that involves analyzing audio signals You ve decide 2 min read 02-10-2024 29
What’s the difference between fftshift(fft2(fftshift(x))) and fftshift(fft2(x))? Understanding the Difference Between fftshift fft2 fftshift x and fftshift fft2 x in MATLAB When working with image processing and Fourier transforms in MATLAB 3 min read 02-10-2024 29
How adding Zero-Head and Zeros at the end of an input sequence effect a DFT-IDFT process? The Impact of Zero Padding on DFT IDFT Understanding the Trade offs In signal processing the Discrete Fourier Transform DFT and its inverse IDFT are fundamental 2 min read 02-10-2024 34
Mathematical expression of Fourier transform used in numpy.fft.fft Decoding the Magic Understanding the Fourier Transform in Num Pys fft fft The Num Py fft fft function is a powerful tool for analyzing signals in the frequency 3 min read 02-10-2024 34
(JavaFX + JTransforms) Image convolution from scratch Implementing Image Convolution from Scratch with Java FX and J Transforms Image convolution is a fundamental image processing technique used for various applica 3 min read 02-10-2024 30
Using Fourier Series Features in XGBoost Harnessing the Power of Fourier Series Enhancing XG Boost with Time Series Features Problem You re working with time series data and want to improve the perform 2 min read 01-10-2024 34
Tips on improving FFTW performance for my Fortran solver? Boost Your Fortran Solvers Speed with FFTW Essential Optimization Tips Fortran a powerful language for numerical computation often relies on the Fast Fourier Tr 2 min read 01-10-2024 44
How to determine the twiddle factor in a mixed-radix FFT？ How to Determine the Twiddle Factor in a Mixed Radix FFT In the world of digital signal processing the Fast Fourier Transform FFT is an essential algorithm for 2 min read 01-10-2024 36
Does FFT and IFFT implicitly assume circular convolution? Does DCT assume the same? The Circular Convolution Conundrum FFT IFFT and DCT The Fast Fourier Transform FFT and its inverse IFFT are powerful tools for efficient signal processing But t 2 min read 30-09-2024 35
Discrepancy between Python Power Spectrum and Swift Power Spectrum Unraveling the Discrepancy Python vs Swift Power Spectra Problem Scenario Lets say you re working on a project involving signal analysis and you need to calcula 3 min read 30-09-2024 29
Fast Fourier Transform of accelerometer data for vibration Unlocking Vibrational Insights Fast Fourier Transform FFT of Accelerometer Data Understanding the vibrational behavior of a system is crucial in numerous fields 2 min read 30-09-2024 33
Why does my FFT output contain extra harmonics? Why Does My FFT Output Contain Extra Harmonics Have you ever performed a Fast Fourier Transform FFT on a signal and found unexpected harmonics in the output Thi 3 min read 29-09-2024 38