There are 3 repositories under frequency-analysis topic.
[ICCV 2021] Focal Frequency Loss for Image Reconstruction and Synthesis
:sound: spafe: Simplified Python Audio Features Extraction
A Discrete Fourier Transform (DFT), a Fast Wavelet Transform (FWT), and a Wavelet Packet Transform (WPT) algorithm in 1-D, 2-D, and 3-D using normalized orthogonal (orthonormal) Haar, Coiflet, Daubechie, Legendre and normalized biorthognal wavelets in Java.
About Code release for "FECAM: Frequency Enhanced Channel Attention Mechanism for Time Series Forecasting" ⌚
Tool to help guess a files 256 byte XOR key by using frequency analysis
[Python3] Octave-Band and Fractional Octave-Band filter. For signal in time domain.
A simple scrolling oscilloscope in rust
[ICCV 2021] Amplitude-Phase Recombination: Rethinking Robustness of Convolutional Neural Networks in Frequency Domain
[ICML 2024] A novel, efficient approach combining convolutional operations with adaptive spectral analysis as a foundation model for different time series tasks
【CVPR2024】Magic Tokens: Select Diverse Tokens for Multi-modal Object Re-Identification
Floating point Forward/Inverse Fast Fourier Transform (FFT) IP-core for newest Xilinx FPGAs (Source lang. - VHDL).
NEURAL: a neonatal EEG feature set in Matlab
Tips for best practices with filterbanks
Fast superresolution frequency detection using MUSIC algorithm
Cerebral Signal's Instantaneous Parameters (Phase, Frequency & Envelope) Estimation & Analysis MATLAB Toolbox
QuanSheng UV-K5/K6/UV-5R Plus Custom Firmware Merge from: ▪ @OneOfEleven and ▪ @fagci Mod w. Spectrum Analyzer ▪ by @egzumer ▪ Enhanced by @RE3CON: Full freq range of BK4819 for TX and RX: 14MHz ~ 630MHz and 760MHz ~ 1879 MHz "ENABLE_TX_UNLOCK". 2nd ToneBurst 1750Hz and 1050Hz = PTT + Sidekey 1, PTT + Sidekey 2.
📶 Python Scripts for the basics of Digital Signal Processing (DSP). Updating on a regular basis.
Recognize events in signals using the Continuous Wavelet Transform
Examples of applying Kasiski examination and Index of Coincidence along with Frequency analysis to restore cryptographic key of Vigenere encypted ciphertext and decrypt it.
Detect dominant periodicity in equidistant time series
Web app for experimenting with control systems
Julia package for providing frequency-stability test functions. Implemented so far in overlapping as well as consecutive form for phase or frequency datasets are: allan deviation, modified allan deviation, hadamard deviation and time deviation.
[ICCV 2023] HybridAugment++: Unified Frequency Spectra Perturbations for Model Robustness
Image Processing Implementation
Python 3 codes for beam optics measurements and corrections in circular particle accelerators
An accurate S transform (Stockwell transform) and its quick inverse approximation in Python.
A refactored port and code rebuilt of JWave - Discrete Fourier Transform (DFT), Fast Wavelet Transform (FWT), Wavelet Packet Transform (WPT), some Shifting Wavelet Transform (SWT) by using orthogonal (orthonormal) wavelets like Haar, Daubechie, Coiflet, and other normalized bi-orthogonal wavelets.
Disclaimer: This project has nothing to with politics and has been completed just out of academic interest.
Code and Data for the paper "LPF-Defense: 3D Adversarial Defense based on Frequency Analysis", PLoS ONE
Chirp instantaneous frequency estimation using stochastic differential equation Gaussian processes