The principle behind active radar – the kind police use to catch speeders in every neighborhood but yours – is simple: send a microwave signal towards a moving object, measure the frequency ...

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 ...

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

“Active radar technology detects hazards (humans and objects) inside the defined danger zones and actively alerts the operator that a hazard is present. This technology also provides the ...

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 ...