GAARDIAN - GNSS Availability, Accuracy, Reliability anD Integrity Assessment for timing and Navigation
Lead Research Organisation:
University of Bath
Department Name: Electronic and Electrical Engineering
Abstract
Critical infrastructure applications (e.g. transport, telecoms, utilities, security and maritime) require real-time and continuous localised knowledge of the reliability and quality (integrity) of PNT data in the vicinity of use - this is not available today. GAARDIAN proposes to develop novel methods for real-time, autonomous, continuous and accurate gathering and filtering of 3 independent enormous sets of Positioning, Navigation and Timing (PNT) data nationally and in complex/difficult environments, to enable robust, real-time and continuous quality (integrity) assurance of PNT data. Both the built and marine environments are complex and offer significant challenges to the seamless capture of spatio temporally referenced PNT sensor data due to weather, building shadow, radio interference, platform instability and inaccessibility. In addition, real-time monitoring of continuous PNT quality data from multiple sources creates far too muchdata to be communicated cost-effectively to, and be managed by, a central database. Hence, novel data reduction methods must be created. The project will develop new methods for intelligent, adaptive localised data gathering (including learning normal data signatures and adjusting thresholds autonomously), storage and filtering - critical to the markets identified. Reduced data will be communicated back to a central server to allow user access for PNT qualitymonitoring. Reliable PNT integrity assurance at point of use requires 3 independent timing or navigation data references to identify and mitigate the presence of interference or jamming of the PNT signals. The project will investigate the use of eLoran, GNSS and timing signals for this purpose, to gather precise and unambiguous data. GAARDIAN will enable users to reliably make critical operational decisions based on unambiguous localised PNT integrity (quality) knowledge.
Organisations
Publications

Alfonsi L
(2011)
Bipolar climatology of GPS ionospheric scintillation at solar minimum
in Radio Science

Benton C
(2013)
Further observations of GPS satellite oscillator anomalies mimicking ionospheric phase scintillation
in GPS Solutions

Benton C
(2014)
Method to measure the Stokes parameters of GPS signals STOKES PARAMETERS OF GPS SIGNALS
in Radio Science

Bust G
(2008)
History, current state, and future directions of ionospheric imaging
in Reviews of Geophysics

Chartier A
(2014)
Ionospheric imaging in Africa IONOSPHERIC IMAGING IN AFRICA
in Radio Science

De Franceschi G
(2008)
Dynamics of high-latitude patches and associated small-scale irregularities during the October and November 2003 storms
in Journal of Atmospheric and Solar-Terrestrial Physics

Hobbs S
(2014)
System Design for Geosynchronous Synthetic Aperture Radar Missions
in IEEE Transactions on Geoscience and Remote Sensing

N/a Yin
(2008)
Imaging of the Antarctic ionosphere during a CIR storm
in JASTP

Panicciari T
(2015)
Using sparse regularization for multi-resolution tomography of the ionosphere
in Nonlinear Processes in Geophysics

Prikryl P
(2015)
GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012 - Part 2: Interhemispheric comparison
in Annales Geophysicae
Description | Technology transfer to companies. |
First Year Of Impact | 2009 |
Sector | Electronics |
Impact Types | Economic Policy & public services |
Description | SEIGG |
Geographic Reach | Multiple continents/international |
Policy Influence Type | Membership of a guideline committee |
Impact | Protection from Space Weather |
Description | University of Bath |
Amount | £215,756 (GBP) |
Funding ID | TS/I00257X/1 |
Organisation | University of Bath |
Sector | Academic/University |
Country | United Kingdom |
Start |