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Start date: 01/09/2022Date of Completion: 28/02/2024Global Navigation Satellite Systems (GNSS) have become the primary marine aid-to-navigation and source of Position, Navigation and Timing (PNT) information. Yet, all GNSS are vulnerable to natural interference, deliberate and accidental jamming and spoofing. Trials have demonstrated that degraded GNSS produce hazardously misleading information and erroneous vessel positions without an alarm being…Prime contractor
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Start date: 19/05/2021Date of Completion: 21/05/2021Position uncertainty during autonomous manoeuvres such as orbit-raising/de-orbiting requires that the local knowledge during low thrust (i.e. with electric propulsion) is accurately determined. Current orbit-raising assumes semi-autonomous control assisted by GNSS, with a long time integral to measure increasing altitude and trajectory of the satellite. The use of a hybrid GNSS unit that…Prime contractor
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Start date: 15/01/2019The current evolution of the Internet of Things (IoT) and Smart Cities, together with the proliferation in the last years of cloud platforms where storage and processing of data can, ideally, be handled on demand, has boosted the appearance of new applications and services in the positioning domain of potential interest for specific use cases. In particular, the processing in the cloud of GNSS… -
Start date: 04/04/2018To find a presentation summarizing the now completed activity, click here. The project is the development of a new type of smartgrid distribution automation sensor platform which uses high speed waveform analysis and high accuracy time stamping to provide electricity Distribution Network Operators (DNOs) with detailed high fidelity information about the operation of their distribution… -
Start date: 16/09/2019There are an increasing number of IoT applications, and projections show that global Low Power Wide Area (LPWA) connections will increase by almost one order of magnitude in the next five years. Terrestrial networks are continuously targeting evolutions of the IoT markets. For example, the latest release of 3GPP standards has introduced modifications to their standard (e.g. NB-IoT) to comply with… -
Start date: 30/04/2020GNSS is the only global, free, comprehensive technology providing absolute PNT data to users worldwide. Its limitations are known, including long life cycle and replenishment schedule, affecting their ability to adapt easily to short-term market needs and to some extent, resilience. Considering the above, alternative PNT methods and solutions have been developed or are being investigated,…Prime contractor
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Start date: 21/03/2021Quantum 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… -
Start date: 14/10/2020GNSS simulations are an important toolset supporting system engineering trade-offs and decisions. They are used to display and monitor key system performance indicators as well as study system behaviour, both through synthetic scenarios and real data replay. Industry and ESA currently use different tools to simulate GNSS systems, however often constrained to undertake only one of two different… -
Start date: 08/12/2022In conventional Global Navigation Satellite Systems (GNSS) receivers, tracking is performed in several independent tracking loops that provide measurements (pseudo ranges, pseudo range rates, carrier Doppler) to a navigation algorithm (Kalman filter), controlling the Position, Velocity, Time (PVT) solution. In Vector Tracking Loop (VTL) , the two tasks of signal tracking and PVT estimations are…Prime contractor
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Start date: 23/01/2023There is an abundance of GNSS receivers deployed around the world providing measurements and PNT information, which are currently combined into networks for a variety of GNSS processing and monitoring applications. However, these receivers remain vulnerable and cannot be used to isolate all sources of error on all GNSS signals and constellations due to the processed nature of the receiver output,…
