Synthetic aperture radar imaging
Application to remote sensing
Synthetic Aperture Radar (SAR), whether airborne or space-borne, can be used to image the ground in any weather, day or night, giving it an obvious operational aspect.
This course will enable learners to understand the principle of SAR, the dimensioning choices, the properties of the images and the specific processes.
The course lasts 5 days (34 hours) and includes a core curriculum with 2 options
8 half-days (including exercises)
2 half-days of in-depth study in the form of tutorials (in 2 separate groups), focusing on:
radar instrumentation (technologies, antenna, subsystems, etc.)
exploitation of images (interpretation, filtering, processing, illustrations)
Learners indicate their choice of the two options during registration.
The course addresses all issues related to the design and use of synthetic aperture radar.
The properties and specificities of radar imagery, sometimes confusing at first glance, are also explored: principles, system sizing, radiometry, geometry, resolution, special modes... as well as the most recent techniques, such as interferometry, polarimetry, multi-date processing, etc.
Course level: Advanced
This course is intended for engineers or technicians with basic knowledge of signal processing and/or radar and wishing to increase their knowledge of radar synthetic aperture imagers.
Those seeking preliminary radar training can refer to courses ELA 001 or ELA 006.
Expert Radar processing at CNES
- Physical basics and environment
- Effects of the atmosphere on propagation
- Ground backscattering, dielectric properties
- The speckle, nature and origin
- Principle of synthetic aperture radar
- Side view, mechanism of synthetic aperture
- Pulse compression
- Processing (spatial and airborne)
- Resolution concept (azimuth and distance)
- Special Modes: ScanSAR and SpotLight
- Radiometric and geometric properties
- Image Quality: defining IQ parameters
- Radiometric precisions: instrumental noise, speckle, calibration, ambiguities, Nes0, etc.
- Geometrical precision: Doppler, distortion, localization
- Image combination
- Interferometry: principle, limitations - Applications to the measurement of movements and to the determination of relief - Product of coherence
- Polarimetry: theory, polarization synthesis, visualization, illustrations
- Multi-date processing
- Programmatic context
- Space and airborne radar programs, past and future
- Dimensioning constraints (regulation, technology, mission)
TUTORIALS IN SMALL GROUPS
Option 1 - Instrumentation
- Specific sizing of SAR
- Subsystems - Antenna - Active modules (MMIC)
Option 2 - Image
- Tutorials, illustrations, applications
- Familiarization with radar geometry
- Manipulation and interpretation (reading) of images
- Post-processing, filtering, measurements, etc.
Scheduled in French:
TOULOUSE: 6 to 10 December 2021
For the English realization, please, consult us.
€2,430 excluding tax (20% VAT)