VRay GPS Antenna aims to beat multipath interference

[Darren]

GPS is an incredible technological marvel, something we've come to rely on in our daily lives. But what is perhaps more incredible is that it works at all.

The GPS signal is transmitted at very low power and has to travel over 11,000 miles to reach your GPS receiver. When this weak signal arrives it can be further degraded with errors caused by a number of sources, one of which is termed 'signal multipath'. It's the primary source of errors in GPS when in built-up areas. See our 'How GPS Works' primer here.

Now a new antenna design from Locata aims to beat multi path issues. The football sized antenna has 64 antenna arrays are able to identify and subtract multipath interference leaving an optimised clean signal.

Although this first design is too large to be of practical use for consumer use, many other antennas using this technology are now in development.

Source: Locata.com

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Darren Griffin

[druck]

I thought the use of a second (civilian) frequency was supposed to help eliminate multi-path, without having to use such complex antennae?

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