Python wrapper for the NTIA/ITS implementation of the Low Frequency / Medium Frequency (LF/MF) Propagation Model. LF/MF predicts basic transmission loss in the frequency range 0.01 - 30 MHz for propagation paths over a smooth Earth and antenna heights less than 50 meters.

NTIA/ITS C++ implementation of Low Frequency / Medium Frequency (LF/MF) Propagation Model. The LF/MF model predicts basic transmission loss in the frequency range 0.01 - 30 MHz for propagation paths over a smooth Earth and antenna heights less than 50 meters.

This repository contains a dataset used to test the NTIA/ITS implementations of the Low Frequency / Medium Frequency (LF/MF) Propagation Model.

Wiki for NTIA/ITS Propagation Library, built with Quarto and GitHub Pages

A SigMF namespace extension for the National Telecommunications and Information Administration (NTIA).

Open software framework for collaborative development of no reference image and video quality metrics

U.S. reference implementation of Recommendation ITU-R P.528 providing propagation path loss predictions for aeronautical mobile and radionavigation services using the VHF, UHF, and SHF bands

Compute PCC and RMSE performance bounds between objective and subjective estimates of quality.

Synthetic Aperture Source Localization

Code in support of the ICASSP 2026 submission titled "Unseen but not Unknown: Using Dataset Concealment to Robustly Evaluate Speech Quality Estimation Models."