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Research Project



ICHASE is a EC funded project lead by Thales Alenia Space, meaning Integrity Complemeting High Accuracy Service via EGNSS.
The ICHASE project assess feasibility and added-value for EGNSS systems and services evolutions to meet the target performances for autonomous vehicles, leveraging on:
        - GNSS as a source for absolute  positioning, obviously complemented by other non-GNSS technologies
        - The Galileo foreseen HAS service, over the E6 band, as a precise positioning service,
        - The EGNOS SoL ready infrastructure, as an enabler for the introduction of a new integrity service complementing high accuracy for SoL applications,
- Non GNSS
        - Additional enabling technologies for positioning in harsh environments (like non-GNSS positioning sensors, threats detection and mitigation technologies, in addition to GNSS positioning).

The foreseen developments target a twofold objective:
- Definition of an integrity concept customised to an autonomous vehicle for road,  particularly considering the various constrained environments applicable to these applications (e.g. urban environments).
- Definition of EGNSS service(s) in the 2030+ timeframe, which will efficiently support these applications, providing the necessary commitments on EGNOS (and Galileo) new messages used in such an integrity concept.

All of the ICHASE developments build on a fully established fact, where no single solution or positioning source can answer all of the needs raised by autonomous vehicles.


EPICURE is a EC funded project lead by Thales Alenia Space, meaning EGNOS Payment LIability Critical applications for Users in Road insurancE.
The added value of EGNOS Open Service (OS) and EGNOS Data Access Service (EDAS) with respect to GPS is in the capability to provide enhanced accuracy and availability, independently from the proprietary/specific GNSS receivers’ technology.
Nowadays, there are products and solutions already available in the market benefiting from EGNOS OS and EDAS and providing:
- Position accuracy enhanced with respect to the GPS positioning solution;
- Increased reliability of the position through a specific level of confidence associated to the measured position, calculated by using the EGNOS delivered corrections and suitably customised for the road application, being a useful information of the relevant correctness especially in the case of potentially unfavourable environments.
- Time to first fix (TTFF) reduction, thanks to the retrieval of the GPS navigation message from EDAS, avoiding the need to wait for full reception of the GPS ephemerides by the GNSS receiver.
These solutions are currently limited, considering that there is no commitment offered by EGNOS service provider related to the use of EGNOS Safety Of Life (SOL) messages in other contexts than aviation. It is therefore an objective of EPICURE to define:
- An integrity concept customised to road insurance applications, in particular considering the various constrained environments applicable to these applications (e.g. urban environments).
- An EGNOS service which will efficiently support these applications, providing the necessary commitments on EGNOS messages used in such an integrity concept.

European GNSS Raw Measurements Task Force on Android Device

Since the opening of access to GNSS raw measurements on Android (Nougat version and higher), the GSA has launched the GNSS raw measurements working group to pool the work of the main navigation and positioning experts and to stimulate innovation around this new functionality. GEOLOC joined the Task Force as soon as it was created in June 2017.

This group aims to share knowledge and expertise on Android raw measurements and their use, including high-precision positioning techniques. The Task Force includes GNSS experts, scientists and GNSS market players, and promotes the wider use of these raw measurements.

New smartphones, starting with Android 7.0, allow developers of smartphone applications direct access to GNSS raw measurements. This is a unique opportunity to access not only pseudo-distance, Doppler and carrier phase measurements, but also to propose new strategies for calculating position, velocity and time (PVT).

GEOLOC has developed a first application called GeolocPVT under Android whose open-source codes and documentation are available on this site.

Standardization: GPSTART-2

In the frame of the M496 European mandate, CEN-CENELEC TC5/WG1 is presently conducting standardization work on the use of GNSS-based positioning for road Intelligent Transport Systems (ITS).The work will be used to update the European standards of the EN16803 series. It will also lead to the future EN16803-4, which will define the methods for carrying out/designing test scenarios (Record part) intended to be replayed in lab (Replay part).
As a reminder, the EN16803 standard deals with the Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) .
- EN16803-1: the revision of "Part 1: Definitions and system engineering procedures for the establishment and assessment of performances" was published in October 2020
- EN16803-2: "Part 2:  Assessment of basic performances of GNSS-based positioning terminals" was published in September 2020
- EN16803-3: "Part 3 : Assessment of security performances of GNSS-based positioning terminals" was published in September 2020


eMAPs consortium proposes to develop a disruptive Localisation Based Service (LBS) through its Galileo-based project eMAPs to tackle the foreseen and expected smart city and autonomous car challenges. The proposed hardware and software developments of eMAPs aim at providing future solutions such as smart navigation for connected car users, real time fleet management for city public transport and infrastructure maintenance monitoring for city planner. By developing an innovative, low-cost, compact, high performance premium receiver, eMAPs will provide a targeted 30cm vehicle’s 2D position accuracy (95%) and high definition urban maps which will benefit to all smart cities stakeholder groups: the travellers, the public transport operators and the urban authorities. The final product of eMAPs will be a platform which will hybridize data generated by a multi-frequency multi-constellation GNSS receiver, an IMU and cameras.



CyborgLOC (Adaptive multi-sensors solution for Indoor/Outdoor geolocation)

The CyborgLOC project aims at the pre-industrial production of a multi-sensor adaptive solution for nomadic Indoor Outdoor geolocation. CyborgLOC relies on: a) the state of the art achieved by the IFSTTAR laboratory in inertial navigation (between 0.35% and 2% deviation over one kilometer), b) on Deep Learning methods And Big Data to integrate the real-time recognition of human body movements and subtract them in the trajectory calculations of the barycenter, c) on the expertise of the miniaturized microsystems of geo-location with energy harvesting of SGME as well as its mastery of sensors D) on the first prototypes of SGME for an Indoor / Outdoor Geolocation system based on the work of fusion and scheduling of data and calculations. The consortium brings together four major complementary domains to solve the challenges of the challenge: a) Inertial navigation, porting and transformation on the CyborgLOC platform of IFSTTAR's very advanced algorithms, b) Robotics, integration of algorithms and knowledge of Elter for Scheduling and behavior responsive to the environment and situation (including human body movements), c) Microsystems, miniaturization and integration of electronic microsystems of SGME (Bageo), with a search for energy saving Up to energy harvesting. These four major domains finally meet around a common theme: an adaptive geolocation system, focusing on movement and environment recognition based on deep learning algorithms for scheduling.

Etoiles Montantes

The project financed by the Pays de Loire Region is part of the preparation of an application for funding from the ERC (European Research Council), whose calls for projects are extremely competitive. It is also dedicated to the organization of the International Conference on Indoor Geolocation Solutions held in Nantes. This regional support enables Valérie Renaudin to lead both the direction of the laboratory and the preparation of the Gait4Nav research project submitted to the ERC Starting Grant in 2018.


The HAPPYHAND2 project is a 4-year project financed by the French inter-ministerial fund FUI, in which GExpertise Conseil and Ocentis, the GEOLOC and LOUSTIC-Université Rennes 2 laboratories participate. It began on 29 September 2015.

The project aims at improving the mobility of people with temporary (or permanent) mobility difficulties, without using a vehicle thanks to

  • the mapping of urban space and its obstacles,
  • calculating routes according to disability profile and
  • real time navigation assistance on connected object.

The construction of the map is performed with an authorized instrumented vehicle (VRA) and the outcome is used to compute customized itineraries. A mobility aiding tool assist the user thanks to a precise geolocation and a telematic assistance service. The automatic feedback of behavioral alerts offers other services starting from automatic alerts up to onsite intervention in the event of a problem. The services will be enriched by the acquisition of data with the VAR but also by the customers in a crowdsourcing way.

This project is supported by laboratory cities (Nantes, Rennes). Associations on mobility and disability have also expressed interest. This commitment of third parties will benefit the experimentation that it proposes, or even a large scale distribution of the products and services resulting from the project.

ESCAPE (European Safety Critical Applications Positioning Engine)

The European Safety Critical Applications Positioning Engine (ESCAPE)  is a 3 years project designed to fullfil requirements of Autonomous Vehicles exploiting E-GNSS differentiator. Title It is funded by the European GNSS Agency (GSA) under the European Union’s Fundamental Elements research and development programme.

With connected vehicles and autonomous driving vehicles being the most relevant trend in the automotive sector there is a clear need to provide accurate and reliable positioning information for safety-critical applications. Within the context of road transportation, safety-critical applications are defined as those that possess the potential to, directly or indirectly, avoid causing harm to humans, destroying the vehicle or damaging external property or the environment. Autonomous driving, advanced driver-assistance systems (ADAS) and dangerous goods transportation are all included in this group.

The traditional way of providing the required accurate and reliable positioning information is to make use of multiple sources of sensor data. The problem with this approach is that it requires the use of such sophisticated equipment as radar/lidar-based sensor and cameras, which tend to be expensive. Furthermore, as this equipment is not specifically designed for use with automotive consumer applications, it is not fully suitable to provide reliable positioning information.

European Safety Critical Applications Positioning Engine – ESCAPE project aims to overcome these multiple challenges by developing a dedicated, reliable and accurate engine, specifically designed for automotive safety-critical applications.

The GNSS receiver in the ESCAPE engine will feature multi-constellation, multi-frequency capabilities and will be enabled to receive and process the upcoming Galileo OS authenticated signals, which is one of the key differentiators of the European GNSS, expected to be broadcast starting form 2018.

INLANE (Lane Navigation Technology)

InLane is a 3-years European Project funded by the European GNSS Agency under the European Union’s Horizon 2020 innovation programme that aim at develoing a low-cost, lane-level, precise turn-by-turn navigation application through the fusion of EGNSS and Computer Vision technology.

It envisions a new generation of enhanced mapping information, made possible by real-time updates based on crowdsourcing techniques, which will result in lane-level vehicle positioning to take navigation to a new level of detail and effectiveness.


COST Action SaPPART (Satellite Positioning Performance Assessment for Road Transport) 

This Action is a network of European scientists and industrial stakeholders who have decided to collaborate on the topic of performance assessment of the GNSS-based terminals used in road transport or personal mobility applications.

The Action, chaired by Ifsttar (François Peyret), will take place from November 2013 to November 2017. The network gathers presently 13 European countries but remains open to other participants, according to the COST rules.

Main objective of the Action

Set up a European Framework for the definition of the service levels for the positioning terminals and has programmed the output of 3 paper deliverables as well as a data base, and the organization of numerous knowledge dissemination events such as seminars, conferences, summer schools, etc.

smartWALK (smart Walk with Autonomous Localisation Knowhow)

The final outcome of smartWALK consists in autonomous localisation algorithms embedded in a smartphone for providing the most accurate indoor and outdoor localisation to walkers holding inertial and magnetic field sensors in hand. 

This project has won the prestigious 100 000 euros Marie Curie Career Integration Grant. This European Fellowship aims at encouraging researchers after a period of mobility. Projects winners are selected in an open competition based on the applicant’s career, the excellence of the research proposal and its integration in the host institution.

Inturb (Integrity in urban environment) 

This research project funded by the DGITM (Directorate General of Infrastructure, Transport and Maritime Affairs) aims at improving the accuracy of GPS in cities. Finally, we also propose a confidence indicator that guarantees this accuracy. 

Using knowledge of the buildings (IGN data) surrounding the GPS receiver to detect and correct satellite measurements disturbed by occultation and reflection on the walls..

French Ecotax System 

In 2009, GEOLOC has been involved in the assessment of the first embedded system proposed by all the candidates. Expertise has focused on the study of the precision of position delivered by each of  the GNSS modules and the performance of the algorithm responsible for the detection of the charging points. In 2012, IFSTTAR was government appointed “homologation organization” for the whole project. This task is carried out by GEOLOC.

LOGIDEK (geolocalized meeting for logistik application)

LOGIDEK project aims at developing both a web and smartphone based applications targeting the logistics sector for  improving the delivery process over the last kilometre. The system is based on the mutual sharing of the carrier’s and the customer’s geographical positions over a short time period.

The main challenges addressed by the project are:

  • Seamless reliable geolocalisation 
  • Saving of the smartphone battery
  • Continuous service irrespective of the level of demand
  • Low operating costs for an increased profitability
  • Social acceptance

 Three complementary regional key players have joined their forces and expertise for achieving these objectives:

  • JOUL: young innovative enterprise expert in geolocated data sharing
  • IDEA Logistics: SME, key player in industrial logistics
  • GEOLOC laboratory

Main outcomes

  • Commercial: thanks to an appealing and essential product for potential customers in the transports and logistics sectors in order to decrease their operating costs
  • Scientific: by pushing the limits of existing state of the art on smartphone based indoor/outdoor geolocalisation systems and methods for general public


Funded by the ANR (National Research Agency) under the PREDIT (Program of research and innovation in ground transportation), CityVIP is a partnership project that demonstrates the feasibility of a robotic solution to perform the "last mile".

This designates the relatively short trips, on sites such as airports, hospitals, resorts ... that users (particularly disabled) must travel from the parking lot where they left their vehicle, or from a transit station.

GEOLOC contributed to the research and development of the navigation system of the robot.