Like most waves in the electromagnetic spectrum, radio waves tend to bounce off of various objects. This can be frustrating to anyone trying to use something like a GMRS or LoRa radio in a dense ...

Analysis of data from NASA radar aboard an airplane shows that the decades-old active landslide area on the Palos Verdes ...

Let’s start off with proof. Below is an animation of a measurement of airplanes and meteors I made using a radar system that I built with a few simple easily available pieces of hardware ...

Abstract: In recent years, radar sensing technology has witnessed significant expansion ... Special attention is paid to the fusion of active and passive 5G-based sensing. Future challenges are ...

This is where passive radar could be a suitable alternative for avalanche monitoring. Unlike conventional active radar, passive radar is a positioning technology that does not emit electromagnetic ...