GAL Project Galileo for Gravity

GAL Project Galileo for Gravity

• Collaborative Project

• Grant # 287193

• Call identifier: FP7-GALILEO-2011-GSA-1-a, topic addressed: GALILEO.2011.1.3.1 (Use of Galileo and EGNOS for Scientific Applications and innovative applications in new domains)

• Publication/Deadline: 20 July/16 December 2010

• Start of the project: 15/02/2012

• Duration: 24 months

http://www.gal-project.eu/

GAL Project Objective

• GAL project aimed to study, design and develop an innovative methodology to make Kinematic Airborne Gravimetry (KAG) technique an operational tool suitable for different scientific, institutional and commercial applications.

• The key issue is the joint use of Galileo, EGNOS, GPS and strapdown Inertial Measurement Units (IMU), and its further integration with GOCE global models.

http://www.gal-project.eu/

GAL Project Concept

GAL will exploit the mechanization equation

d2x / dt2 = f + g(x)

d2x / dt2: geometric acceleration of the vehicle x: coordinates of the IMU navigation center

f: accelerometer measurements g(x): gravity vector

http://www.gal-project.eu/

GAL Project Applications

http://www.gal-project.eu/

GAL Project Consortium

1. Galileian Plus srl – Rome, Italy (SME, coordinator)

2. Politecnico di Milano – Milan, Italy (University)

3. Institut de Geomàtica (now Centre Tecnològic Telecomunicacions de Catalunya) – Barcelona, Spain (Public Research Institute)

4. Deimos Engenharia – Lisbon, Portugal (Large Company)

5. Institut Geològic de Catalunya (now Institut Cartogràfic i Geològic de Catalunya) – Barcelona, Spain (Public Research Institute)

6. École Polytechnique Fédérale de Lausanne – Lausanne, Switzerland (University)

7. GeoNumerics – Barcelona, Spain (SME)

http://www.gal-project.eu/

GAL Project Galileian Plus

GAL project represented continuity for Galileian Plus

GNSS processing SW:

• NDA Lite

• NDA Pro

Coordination of scientific projects:

• ASI (SISMA, VULSAR, GeoGPS)

• FP6 (Geolocalnet)

Gravimetry:

• GOCE Italy

Galileian Plus srl, together with Esri Italia SpA, is part of GKH Holding

http://www.gal-project.eu/

GAL Project Results

• The use of aircraft for gravity measurements is not new; already in the late 1950s it was clear that airborne gravimetry could be more useful and cost effective w.r.t. terrestrial gravimetry

http://www.gal-project.eu/

• An airborne gravimetry survey in an area with no ground infrastructure can provide typically a trajectory at the level < 15 cm accuracy (5-10 mGal), @<10km of spatial resolution

• With the exploitation of modernized GNSS (Galileo simulation) and IMU technology improvements, GAL trajectory reconstruction reached 5 cm accuracy, leading to 3.4mGal@1km and 1.7mGal@3km

• Airborne-derived local model is then integrated with satellite-derived global gravity models (GOCE).

GAL Project Results

http://www.gal-project.eu/

Galileo improvement

estimation Real GPS

Simulated

GPS

Simulated

GPS +

Galileo

Real

GPS + Galileo

expected result

Precision (cm) 1.17 0.34 0.24 0.83

(target 5.0)

GNSS SW precision results for the static case

Galileo improvement

estimation Real GPS

Simulated

GPS

Simulated

GPS +

Galileo

Real

GPS + Galileo

expected result

Precision (cm) 5.38 0.59 0.16 1.46

(target 5.0)

GNSS SW precision results for the kinematic case

GAL Project Acquisition Campaigns

http://www.gal-project.eu/

via Tiburtina 755 – 00159 Roma Italy

Angelo Amodio (aamodio@esriitalia.it)

GAL Project Galileo for Gravity

http://www.gal-project.eu/