Spherical Antenna Improves Urban GPS

Sep-27-13 The VRay antenna eliminates interference from tall buildings and other structures to help improve GPS navigation within cities.

Developed by the US Air Force and the Locata Corporation, the basketball-sized device is equipped with a beam-forming antenna that can filter out the correct GPS signal from the noise of other signals. It is able to scan for millions of beams a second, identifying and subtracting multipath interference in order to extract the clean signal.

Although beam-forming antennas have already been in use, they have been too large for the average consumer market. The VRay, in comparison, achieves its smaller size by containing only one high-speed receiver, which will switch quickly between the different elements.

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