ESA's NAVISP Invitations to Tender invitations to tender from NAVISPThu, 16 Jul 2020 11:04:28 +0000Application of Machine Learning Technology for GNSS IoT Data Fusion advances in technology have contributed to the deployment of a "de-facto" large GNSS receiver array based on affordable smart devices that are easy to find in the consumer market (dual band smartphones, raw GNSS data recording, new sensors).  These devices, evolving fast with each new generation, feature an increasing number of capabilities and sensors able to collect a variety of…Thu, 16 Jul 2020 11:04:28 +0000latest-ittsitt-60Multi-layer PNT for SAR Search and Rescue (SAR) standards are set and overseen by COSPASSARSAT. SAR instruments are currently flying on board MEO satellites in several GNSS constellations. These platforms complement the existing LEOSAR and GEOSAR satellites. Existing LEO/GEOSAR are slow in detecting an active beacon due to several limitations in design (limited satellites, fast orbits, no independent location…Thu, 16 Jul 2020 10:56:56 +0000latest-ittsitt-67Hollow Corner Cube Retro-Reflectors In-Orbit PNT solid Corner Cube Retro-reflector (CCR) arrays are often implemented to allow laser tracking of satellites from ground. In order to achieve a measurable return signal, such arrays are typically rather large, and as conventional corner cubes are made of glass, the arrays are typically high in mass. However, in recent years, interest has grown in using hollow corner cubes for space…Thu, 16 Jul 2020 10:56:31 +0000latest-ittsitt-66An Innovative concept for the Risk Assessment of Geologic Hazards using GNSS and Solid Earth Tides Modelling is long debated whether a relation exists between the tidal stress produced by the Moon and the Sun on the Earth crust and the occurrence of difference geologic events, in particular large earthquakes and volcanic eruptions. Clear evidence for this relation has been elusive for a long time. However, the analysis of more complete global earthquake catalogues has shown that a significant…Thu, 16 Jul 2020 10:52:56 +0000latest-ittsitt-69Cooperative Positioning and Integrity Concept in Vehicle Platooning platooning is a scenario in which vehicles automatically follow each other in a sequential formation known as the platoon. Autonomous Vehicle Platooning is a promising feature that could be provided by future self-driving cars, trucks and other vehicles. It involves a human driver that is either physically present or is remotely controlling the vehicle at the platoon lead. Autonomous…Tue, 14 Jul 2020 06:31:50 +0000latest-ittsitt-71New Concept for Evolutive Mitigation of RFI to GNSS frequency interference, intentional or not, is considered to be among the main threats to safety-critical and commercial GNSS applications. This includes out-ofband emissions, privacy-protection devices (PPD) also known as in-car jammers, etc. Consequently, many COTS GNSS receivers nowadays integrate mitigation strategies for RF interferences (jamming and spoofing). Moreover, one can note…Thu, 11 Jun 2020 09:25:20 +0000latest-ittsitt-73GNSS Science with Commercial Aircraft of commercial aircraft and vessels, as platforms for crowdsourcing science and remote sensing, is under study by organisations like the International Hydrographic Organization (IHO) in its Crowdsourced Bathymetry Working Group, or by private companies for imaging and radar applications. Some advanced passive GNSS-based processing techniques (e.g. exploiting simultaneously direct and…Thu, 04 Jun 2020 09:04:03 +0000latest-ittsitt-50Combining ELF signals with GNSS for improved PNT need for a robust PNT to complement or back up GNSS in critical infrastructure/critical application is widely acknowledged. This translates into actions taken by stakeholders to further raise awareness (e.g. radio navigation plans in the US and Europe) and for some, pave the way towards some deployment (e.g. recent Request for Information initiated by the US Department of Transport for a…Wed, 18 Mar 2020 13:11:44 +0000latest-ittsitt-68Quantum Metrology for secure PNT metrology techniques show great potential to enhance both precision and security of existing PNT techniques. It has been shown that, by probing physical quantities using quantum states of light and/or matter, one can achieve a precision beyond the theoretical limit set by classical mechanics. This effect has been demonstrated in a variety of contexts and is particularly useful in optical…Wed, 18 Mar 2020 13:10:44 +0000latest-ittsitt-63