IEEE

Instantaneous Frequency Estimation via Spectrogram Projection and P-Spline Approximation

Abstract: Frequency Modulated (FM) signals are usually characterized by two or more components having different waveforms and time-dependent frequencies. The estimation of the instantaneous frequency ...
InfoWorld

The best new features and fixes in Python 3.14

Official support for free-threaded Python, and free-threaded improvements Python’s free-threaded build promises true parallelism for threads in Python programs by removing the Global Interpreter Lock ...
Science Daily

Scientists accidentally create a tiny “rainbow chip” that could supercharge the internet

Researchers at Columbia have created a chip that turns a single laser into a “frequency comb,” producing dozens of powerful light channels at once. Using a special locking mechanism to clean messy ...
IEEE

A Deep Learning Model Based on Spectrogram Estimation and Wavelet Denoising for Spectrum Sensing in Cognitive Radio Systems

Abstract: Cognitive Radio (CR) has materialized as a pivotal technology in wireless communications, addressing spectrum scarcity by enabling dynamic spectrum access. A fundamental component of CR at ...
Frontiers

Toward non-invasive early pest surveillance: cross-modal adaptation using PLMS acoustic-visual representation and pre-trained transfer learning

Pest infestations pose significant threats to agricultural productivity and ecological balance, making early prevention crucial for effective management. Toward non-invasive early-stage pest ...