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Study into Ultra-Wide-Band SAR Tomography over Dry, Rocky Terrains

In recent years, surface-penetrating radars have formed a part of several ESA missions in both monostatic and bi-static configurations. Such radars can be found, for instance, on board Mars Express where, using MARSIS, the Martian sub-surface is sensed, as well as on board Rosetta where CONSERT was used to probe the comet 67P/Churyumov-Gerasimenko.

France

16/S09

Institut de Planétologie...
AIM High-Frequency Radar Concept Design

This purpose of the study was to develop a high frequency radar to sound the first tens of metres of asteroid regolith and to achieve 3D tomography with metric resolution in order to
- Determine its structure and layering
- Identify geomorphological elements (rocks, boulders, etc.) embedded in the sub surface
- Map the spatial variation its texture
- Derive an estimate of dielectric permittivity of the sub-surface material

France

14/M74

Institut de Planétologie...
Assessment Of Non-Intrusive Diagnostic Methods For Internal Material Process Diagnostics

The purpose of this GSP activity was to assess the capabilities of non-intrusive diagnostic techniques for internal measurements in ablative materials during PWT tests. This initial steps were to identify the measurements to be performed in relation with high-speed Earth re-entry, and to identify the accessible parameters as well as related diagnostics techniques. For this objective an extensive review of the possible measurement methods, with a focus on non-intrusive diagnostics, has been undertaken.

France

13-052

Ingénierie et Systèmes...
Study ESA Outreach Activities
France

1999-51

Institut de Planétologie...
European Research Program on hypersonic aerodynamics

This report reviews the recently completed and current work programs on various aspects of hypersonic aerodynamics research conducted in European research organisations. Four main fields are covered: configuration aerodynamics, propulsion aerodynamics, rarefied flows and associated non-equilibrium effects, and real gas effects. In each field, a brief description or comment appears on each job, together with references to published papers, a job index and an address for each contributor.

France

0

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