Methodology family
SAR processing
Techniques that exploit microwave backscatter from active radar illumination, operating independently of sunlight and cloud cover. Ranges from millimetre-precision deformation measurement to rapid flood and damage mapping.
Methodologies in sar processing
- InSAR - surface deformation Measures millimetre-scale ground surface displacement by comparing phase differences between repeat SAR passes; good for subsidence, earthquake deformation, and volcanic monitoring.
- Polarimetric SAR - target decomposition Decomposes backscatter into scattering mechanisms (surface, double-bounce, volume) using multi-polarisation data; good for forest structure estimation, urban mapping, and soil moisture retrieval.
- SAR backscatter - change detection Detects land-cover or structural change by comparing backscatter intensity across dates; good for flood mapping, deforestation alerts, and disaster damage assessment.
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