Which of the following describes the primary purpose of a Digital Elevation Model (DEM) in SAR geocoding?
Question 2
In the context of SAR interferometry, what is the significance of the 'interferometric phase'?
Question 3
Which of the following speckle filtering techniques is known for preserving edges and fine details in SAR images while reducing noise?
Question 4
When performing radiometric calibration, what is the primary reason for converting raw Digital Numbers (DNs) to radar brightness or backscatter coefficients (e.g., $\sigma^0$ or $\gamma^0$)?
Question 5
Which of the following factors is most critical for successful interferometric SAR (InSAR) applications, particularly for deformation monitoring?
