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Full Description
Describing a field that has been transformed by the recent availability of data from a new generation of space and airborne systems, the authors offer a synthetic geometrical approach to the description of synthetic aperture radar, one that addresses physicists, radar specialists, as well as experts in image processing.
Contents
A Theoretical Emergency Kit for SAR Imagery
The propagation and polarization of electromagnetic waves
The electromagnetic radiation of microwave antennas
Interaction between waves and natural surfaces
Elements of signal processing
SAR Processing: At the Heart of the SAR Technique
Introduction
General principles of Synthetic Aperture Radar
Frequency representation
SAR Synthesis algorithms
System constraints
Geometry characteristics
An introduction to super-resolution
Radar processing and geometric specificity of bistatic data
From SAR Design to Image Quality
Introduction
Radar equation, Radar Cross Section (RCS) of a point target
Radar signature for extended targets - the backscatter
Signal to noise ratio (SNR) of the radar-target link before SAR synthesis
Modifying the SNR during SAR synthesis
Instrument Noise Equivalent σ0(NEσ0inst)
Impact of image ambiguities on the NEσ0inst - total
Volume of data generated onboard
Telemetry data rate
Calibration and corresponding image quality requirements
Speckle noise and image statistics
The impulse response (IR)
Radiometric elements of Image Quality
Geometric elements of image quality
Radar image interpretation
SAR Interferometry: Towards the Ultimate Ranging Accuracy
Principles and limitations of radar interferometry
Implementing interferometry processing
Application for topography
Application for displacement measurement
How slope effects limit interferometry
Interpreting the results
Availability and mission perspectives
Comparison of interferometry with other methods
Robustness of coherent processing when faced with ambiguities
Permanent reflectors
SAR Polarimetry: Towards the Ultimate Characterization of Targets
Introduction
Radar polarimetry: operating principle
The scattering matrix
Standard forms of backscatter
Polarization synthesis
Characteristic polarization and Euler parameters
Coherent decomposition of the polarimetric measurement
Taking depolarization into account
Covariance matrix - coherence matrix
Incoherent decomposition of polarimetric measurements
Practical cases of polarimetric analysis
Synoptic representation of polarimetric information
Future compact polarimetric systems
Merging polarimetry and interferometry: PolInSAR
Conclusion
