MIT researchers developed a system that enables a drone to determine its position in 6D space in indoor, dark, or low-visibility environments using radio frequency waves. They drone has 2 radars; the ...

The polarization splitting prism is used to separate the horizontal polarization and vertical polarization of a beam of light, and the transmittance ratio of P light and S light is greater than 1000, ...

"Dual pol," short for dual polarization, describes the WRAL Dual Doppler radar, which "sees" in two dimensions, allowing us to distinguish between types of precipitation in the air. Answer: What you ...

MOLINE, Ill. — Doppler radar technology has been around since the late 1800s, with its first widespread use during World War II to help detect enemy aircraft. Since the late 1940s, this same ...