130,456 research outputs found
Campagna di sperimentazione del PPP a cura dello IEN e di NRCan
No full textRapporto Tecnico IEN n. 690, giugno 200
Predicting and monitoring the agreement between the Galileo System Time and UTC: insights from the Galileo System Test Bed V1
No full textInnovative Strategy for Vehicle Position Certification on the basis of GNSS reference time
No full textExperimental Assessment of the Time Transfer Capability of Precise Point Positioning (PPP)
No full textIl Precise Point Positioning: confronto a distanza di orologi mediante ricevitori GPS per geodesia
No full textRapporto Tecnico IEN n. 68
Assessment Study of Navigation and Communication Terminal-Based Hybrid Positioning
No full textSoftware based cellular location systems for accurately determining the location of
a wireless cellular device is becoming one of the key dierentiator in an increasingly
crowded personal communication market. New location-based services are the long
awaited killer application for the wireless industry, according to analysts. Current
and future development plans foresee that providers can deliver location-based ser-
vices to standard mobile phones and that the users through their wireless hand-set
can now accurately locate themselves and tap into new applications like mobile yel-
low pages, concierge services, roadside assistance, location sensitive billing, personal
navigation and tracking services. In US, the development of these services is be-
ing encouraged by the FCC E-911 mandate, all US wireless operators will begin to
provide the location of mobile emergency callers to safety ocials and emergency
dispatchers. There are many regulators in other countries worldwide that are be-
ginning to explore mandating wireless location in this way too, including Europe
[1].
In this paper we show how, providing the users of terminals able to deal jointly
with GNSS signals and cellular positioning signals it possible to improve the geometrical Dilution of Precision related to the navigation solution. A theoretical
framework is dened in order to deal with the hybrid localization system, and
simulation results are presented
Performance Comparison and Stability Characterization of Timing and Geodetic GPS Receivers at IEN
No full text- …
