In this context, the knowledge of the full antenna pattern (main lobe and side lobes) from the transmitting antennas of each of the GPS satellites is essential. These published antenna patterns and ...

The Starlink receivers need positioning and precise timing information to function, and currently the best way to get that information is to use a global navigation satellite system (GNSS) such as … ...

Satellites orbiting the earth transmit radio signals down to the earth. The GPS antenna receives the signal (active antennas amplify the signal a bit) and sends it down the line to the receiver.

The 1,336-km altitude of both of these missions enables the estimation of the GPS satellite antenna PCVs from 0 up to 17 degrees from boresight while GPS receivers on Earth can only see the satellites ...

Existing designs for GPS antennas have generally been optimised for PDA-style units or for mounting on a vehicle dashboard, where it is simple to orientate the antenna to point skywards towards the ...

GPS is expensive because it is a very slow communication channel — you need to communicate with three or four satellites for an extended duration at 50 bits per second. There is no time division ...

Antenna systems, for example, ... Future GPS satellites will come with a more flexible transmission system that can be adjusted from the ground to overcome jamming, the Air Force said.

Preparing the next generation of GPS 07:32. Thanks to GPS, your car, your phone, even your watch knows exactly where you are on the planet, by listening to a satellite signal from 12,000 miles ...

Because the antenna has no moving parts, it can align itself with a satellite within milliseconds. Karabey hopes that a commercial version could be manufactured using a process similar to that ...

Leveraging GPS satellites could be the key to ensuring mobile antennas remain effectively aligned, according to Vodafone’s latest solution announced this week. The position of mobile antennas is ...