WiFi-based indoor positioning  have been more widely used in buildings than other local methods like RFID , Ultra Wideband (UWB) , Zigbee , Bluetooth  and Pseudolite
The alternative in those places can be for example inertial measurement systems INS or pseudolite
Various companies have pursued ways to improve pseudolite
performance, but recently Leica Geosystems Mining announced an exclusive industry partnership with Australia-based Locata Corp.
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.
In the last period pseudolite
equipment has been widely used to a range of applications (Wang, 2002; Wang, 2007), such as aircraft landing (Sherman Lo at faa.
Based on the same pseudolite
technology that Novariant has employed in precision landings of commercial aircraft and military fighter planes in zero visibility conditions, the Terralite XPS system architecture is now being deployed to support other critical applications that require continuous positioning availability.
2]R) and even battlefield pseudolite
augmentation must be strongly considered in jamming scenarios.
Promising alternatives include ground-based global positioning system pseudolites
, HALE UAS, and improved inertial and celestial navigation capabilities.
signal can be as strong as the power available to it.
, EGNOS re-transmission and cellular network techniques -Set up urban pilot trials of key road transport applications -Assess potential impacts and benefits of Galileo advantages for pilot users.