pseudolite


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pseudolite

[′süd·ə‚līt]
(navigation)
A ground-based reference station in a differential global positioning system, situated at a known location, which broadcasts a signal that has the same structure as a satellite signal and also contains differential corrections for the signals of satellites in view.
References in periodicals archive ?
unknown pseudolite delayed version of the same signal).
(15) Pseudolite is a word-blend of "pseudo" and "satellite." Pseudolites include satellite-like transmitters that function similarly to GPS, but signals are transmitted closer to the Earth instead of coming from space, and the transmitters reside in terrestrial rather than on-orbit platforms such as a tent, vehicle, or low-flying aircraft.
What's more, given that satellite data may sometimes be hard to retrieve--in urban canyons, for example--Coggins needs to integrate satellite data with signals from new systems, such as nearby "pseudolite" ground stations that provide a higher-power alternative to the weak GPS signals.
WiFi-based indoor positioning [6] have been more widely used in buildings than other local methods like RFID [7], Ultra Wideband (UWB) [8], Zigbee [9], Bluetooth [10] and Pseudolite [11].
The alternative in those places can be for example inertial measurement systems INS or pseudolite positioning systems.
Chang, "Performance analysis of GPS pseudolite interference mitigation using adaptive spatial beamforming," in Proceedings of the 61st Annual Meeting of The Institute of Navigation, pp.
Various companies have pursued ways to improve pseudolite performance, but recently Leica Geosystems Mining announced an exclusive industry partnership with Australia-based Locata Corp.
Thornburg, "Characterization and performance of a prototype wideband airport pseudolite multipath limiting antenna for the local area augmentation system," in Proceedings of the 2003 National Technical Meeting of The Institute of Navigation, pp.
Raquet, "Accurate positioning using a planar pseudolite array," in Proceedings of the IEEE/ION Position, Location and Navigation Symposium, pp.433-440, May 2008.
The Locata technology consists of a network of terrestrially-based and time-synchronised pseudolite transceivers, as shown in Fig.
In parallel with such efforts, Darpa (Defense Advanced Research Projects Agency) has been working under the GPX Pseudolite programme on the use of UAV-borne or ground-based transmitters that would create a high-powered artificial GPS environment over the battle area.
Imagine what a sophisticated middle income country could do with a few thousand French and/or Russian precision guided munitions (PGMs); a few hundred unmanned aerial vehicles (UAVs) (from any of 30 countries); digital videocameras; personal computers; cellular switches phones and pagers; GPS and pseudolite receivers; pocket radars; and night vision goggles; plus archived Powerscene maps combining purchased space imagery and topography, all integrated by a few hundred U.S.