navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
navigation acronyms, abbreviations and definitions - International ...
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UAIM user autonomous integrity monitoring<br />
UAIS Universal Automatic Identification System (IMO MSC 74(69) Anx C)<br />
UAR upper air route<br />
UART universal asynchronous receiver-transmitter<br />
UAS unmanned aircraft system<br />
UAS upper airspace service<br />
UASRA upper airspace special rules area<br />
UAT universal access transceiver<br />
UAV uninhabited/unmanned aerial vehicle<br />
UB unlit buoy<br />
UBS universal bulk ship<br />
UCAV unmanned combat air vehicle<br />
UCLASS Unmanned Carrier-Launched Airborne Surveillance <strong>and</strong> Strike (UAV)<br />
UDA upper advisory area<br />
UDF UHF direction finding<br />
UDMS Urban Data Management Society<br />
UDP User Datagram Protocol (Internet)<br />
UDR upper advisory route (ATC)<br />
UDRE user differential range error (eg in WAAS/EGNOS)<br />
UE user equipment<br />
UERE (or URE) user equivalent range error<br />
Any error contributing to the error budget of a at<strong>and</strong>-alone satnav rx,<br />
expressed as an equivalent error in the range between the user’s rx<br />
<strong>and</strong> satellite. Total UERE is the rss of the individual errors.<br />
UGV unmanned ground vehicle<br />
UHF ultra high frequency (300-3,000 MHz)<br />
UIC Union <strong>International</strong>e des Chemins de Fer (based in Paris)<br />
<strong>International</strong> Union of Railways.<br />
UID user interface document<br />
UIG Urban ITS Group (UK DTLR)<br />
UIR Upper Information Region (FIR above FL245)<br />
UIRE user ionospheric range error<br />
UITP Union <strong>International</strong>e de Transport Public<br />
UK SSC Cabinet Office Spectrum Strategy Committee (UK)<br />
UKAB United Kingdom Airprox Board<br />
UKCIP UK Climate Impacts Programme<br />
UKF unscented Kalman filter<br />
UKHO United Kingdom Hydrographic Office<br />
UKISC United Kingdom Industrial Space Committee<br />
Sponsored by SBAC <strong>and</strong> INTELLECT.<br />
UKLFHB UK Low Flying H<strong>and</strong>book (military)<br />
138<br />
March 2012
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