LISA Prototype (Logiciel d'Integration SAR Aéroporté) Noyau de calcul géométrique pour la simulation de SAR aéroporté - 2000 - 2001
DIONISOS SAR simulator (Développement Incrémental des Outils Numériques d'Imagerie pour la Simulation de l'Observation SAR). Simulateur complet aéroporté et satellitaire - Objet de publications et d'études en France et à l'étranger - 2004 - 2013DIONISOS SAR Simulator
In SAR studies, raw data for a specific environment or new configurations are not easily obtained without simulation assets. SAR Simulation thus becomes a valuable tool for the analysis and interpretation of SAR images under the control of a given scenario. Raw data simulation might also help to design SAR systems or SAR processing algorithms.
Since DIONISOS is fast and easy to use (quick
curve), it is relevant
to teams that are
involved in remote sensing and SAR image analysis.
To simulate SAR raw data of complex
and extended scenes, DIONISOS is a fully functional
simulator that has been developed for civilian and
applications and used in many scientific studies or military
produces realistic SAR raw data and images from GIS data and/or 3D
scenes. Several validation studies had been
conducted in the past years, grounded on actual measured data and
Based on an effective and
radiometrically accurate ray-tracer, this physically-based scene
produce high fidelity synthetic imagery for your studies. This software
to provide raw data and images
for spaceborne and airborne
systems, static and/or dynamic scenes (i.e. including moving
To do so, this simulator makes an extensive use of physical
to achieve the best possible level of realism.
A complete package
DIONISOS software package provides a turn-key complete solution, with a creation studio application, material editor, image generator and an image analysis tool all in one. The application offers a range of features needed to prepare, simulate and analyze images in a comfortable and straightforward fashion.
DIONISOS approach is based on GIS and 3D data, real-world units and settings. Creating and simulating is straightforward, and set-up times are extremely low.
The technology behind DIONISOS is grounded on physically correct models, resulting in images of high quality. Its complex physically correct creations can help image interpreter to understand the content and various effects that a SAR image might exhibit.
SAR images sometimes appears difficult to understand. For educational purposes, this software offers an attractive way to explain capabilities and limits of SAR images to the remote sensing community, which is more familiar with optical/IR images than radar ones. Thus, DIONISOS is a valuable tool to prepare operators to work with SAR images and to help them for image interpretation.
Assessment of new algorithms
Many SAR studies suffer from the lack of raw data/images or control on SAR image content. Providing a wide variety of images and SAR effects (e.g. studies on scene content, SAR resolution, PSLR, nesz, incidence angles, material properties…), DIONISOS also appears as an interesting tool to assess new processing algorithms and to tune them afterwards.
To summarize, DIONISOS
main features are:
Intuitive 2D/3D english GUI.
Fast generation of 3D scenes (STUDIO) with english GUI.
Parametric studies with english GUI.
Image Analysis (ANALYST) with english GUI.
Material properties edition.
Efficient Visibility computation.
EM methods or measurement data for diffuse effects.
Geometrical Optics for dihedral and trihedral effects.
SLC image or Raw Data simulation.
Image formation algorithms (RDA, Chirp Scaling, Omega-K)
For any information please feel free to contact me at dumont_reynald at yahoo.fr
Figure 1 : 3D model of the city of Rennes
Figure 2 : Simulated SAR Image (with DIONISOS)
Figure 3 : Simulated EO image (with SAFIR)
Figure 4 : Urban furnitures, vehicles and multiple bounces effects