Dieses Verzeichnis enthält zur Zeit 1462 Abkürzungen.
| UAS | Unpiloted Aircraft System |
| UAV | Unpiloted Aerial Vehicle |
| UCAR | University Corporation of Atmospheric Research |
| UDRE | User Differential Range Error (GNSS) |
| UDREI | UDRE Indicator |
| UEE | User Equipment Error (Galileo) |
| UELN | United European Levelling Network |
| UEN | Up-East-North (Koordinatensystem) |
| UERE | User Equivalent Range Error (GNSS) |
| UF | unterirdische Festlegung |
| UIRE | User Ionospheric Range Error |
| UIS | Umweltinformationssystem |
| ULS | Uplink Station (Galileo) |
| UMTS | Universal Mobile Telecommunications System |
| UNAVCO | University NAVSTAR Consortium www.unavco.org |
| UNE | Up-North-East (Koordinatensystem) |
| UNICG | United Nations International Committee on GNSS |
| UNISPACE | United Nations Conference on the Exploration and Peaceful Uses of Outer Space |
| UNOOSA | United Nations Office for Outer Space Affairs www.unoosa.org |
| UPD | Uncalibrated Phase Delay (GNSS) |
| UPLN | Uniform Precise Levelling Network of Central and Eastern Europe |
| UPS | Universal Polar Stereographic (Koordinatensystem) |
| URA | User Range Accuracy (GNSS) |
| URAI | User Range Accuracy Index (GNSS) |
| URE | User Range Error (GNSS) |
| USAF | US Air Force |
| USNG | United States National Grid |
| USNO | United States Naval Observatory |
| UT | Universal Time |
| UT0 | Universal Time 0 |
| UT1 | Universal Time No. 1 |
| UT2 | Universal Time No. 2 |
| UTC | Universal Time Coordinated |
| UTM | Universal Transverse Mercator (Koordinatensystem) |
| UTS | Universal Total Station (Trimble) |
| UWB | Ultra Wide Band (Kommunikationstechnologie) |
| UZS | Uhrzeigersinn |
Keine Treffer.