Phys.org  February 15, 2023 A team of researchers in the US (Los Alamos National Laboratory, New Mexico Institute of Mining and Technology) developed and deployed a new 3-dimensional broadband radio frequency interferometric mapping and polarization system (BIMAP-3D) which provides an unprecedented capability in high-resolution, time-evolving 3D lightning source mapping and 3D source polarization detection for detailed study of lightning discharge physics. In this article they described the BIMAP-3D system design, a generalized and analytical 2D interferometry technique for noncoplanar antenna array, a two-stage 3D mapping technique based on geometric triangulation and baseline-based differential time of arrival, and a technique to […]