London Centre for GNSS Research

(LCGR)

The London Centre for GNSS Research (LCGR) combines the Global Navigation Satellite System (GNSS) expertise of UCL’s Department of Geomatic Engineering and the Engineering Geomatics Group at Imperial College London. Both departments have an established research record in a variety of areas relating to GNSS system design, modelling and applications. The LCGR is led jointly by Professor Paul Cross (UCL) and Prof. Washington Ochieng (Imperial College London), who together have over 30 years experience in GNSS related research. The centre conducts fundamental and applied research and offers a consultancy service to the GNSS industry. Research interests at the LCGR include; GNSS system design; quality description and modelling; integration of GNSS with other systems; high precision carrier phase applications; and the development of innovative and novel GNSS applications.

Examples of Current and Recently Completed Projects

Galileo System Definition

  • GPS integrity monitoring capabilities and mechanisms within Galileo (Alcatel Space Industries)

  • The use of local area augmentation with Galileo for fleet management in urban areas (Logica)

EGNOS

  • System design (consortium including Thales, DASA, GMV & MMS: Tripartite Group)

  • Definition of user requirements and development of validation tools: ECUREV Project
    (multinational consortium including DASA, GMV & Alcatel: European Commission)

Transport Telematics

  • Performance assessment of GPS in urban environments (Thales)

  • Real-time collection and modelling of spatio-temporally referenced vehicle performance and emissions data {VPEMS}(UK Government)

Air Traffic Management

  • Role of new technologies (e.g. GNSS) in increasing airspace capacity (Eurocontrol, UK Government)

Attitude Determination using GPS

  • Integration of GPS and gyros for attitude determination in airborne remote sensing (UK Government)

  • Low Earth orbiter attitude control (Defence Evaluation Research Agency, DERA)

Stochastic and Functional Modelling

  • GNSS phase multipath mitigation through mathematical modelling (Leica Geosystems)

  • Analytical solar radiation pressure modelling, IGEX-98 Campaign

Airborne GPS Performance

  • GPS positioning performance assessment on a jet fighter aircraft (British Aerospace)

Reference Systems and Geodynamics

  • GPS coordinate transformations for the Channel Tunnel rail link (Rail Link Engineering)

  • Seismic hazard assessment through GPS measurement of strain in Greece (European Commission)

 

Areas of Expertise

  • GNSS System Design

- definition of user services and the specification of corresponding requirements

- functional and physical architectural design (stand-alone systems, GBAS and SBAS)

- performance analysis covering both navigation system errors (NSE) and RAMS

- design of signal structure, specification of algorithms

- ground and space segment system dimensioning, system testing and validation

- orbit modelling

- reference system definition and interfacing

  • Quality Description and Modelling

- development of quality standards (benchmarks) for GNSS

- development of tools for quality assessments

- stochastic and functional modelling of both code and carrier phase data

- critical error assessment and mitigation: especially multipath and ionosphere

  • Integration of GNSS with other Systems for a Variety of Applications

- space-based systems (GPS, GLONASS, GEO and other future satellite systems)

- terrestrial systems (pseudolites, inertial navigation systems, dead reckoning)

- geographical information systems and map matching

  • High Precision Carrier Phase Applications

- aircraft landing, robotics, machine guidance and deformation monitoring

- robust, high integrity and reliable static and real-time positioning models

  • Identification of Innovative and Novel Applications of GNSS

- land, offshore and space

 

 

LCGR Members

Prof. Washington Ochieng
Prof. Paul Cross
Dr. Jon Iliffe
Dr.Kevin Sheridan
Mr. Marek Ziebart
Mr. Knut Sauer
Mr. Arnab Majumdar
Mr. David Betaille
Mr. Lawrence Lau

In addition the LCGR is supported by Imperial College London and UCL colleagues working in related disciplines.

 

Contact Details

Professor Washington Ochieng
Department of Civil and Environmental Engineering
Imperial College London
Imperial College Road
London SW7 2AZ
Telephone: +44 (0)20 7594 6104
Fax: +44 (0)20 7594 6102
E-mail: w.ochieng@imperial.ac.uk

Professor Paul Cross
Department of Geomatic Engineering
University College London
Gower Street
London WC1E 6BT
Telephone: +44 (0)20 7679 7028
Fax: +44 (0)20 7380 0453
E-mail: paul.cross@ge.ucl.ac.uk