Differences between LiDAR and SAR
| LiDAR | SAR |
|---|---|
| Weather dependent (blocked by cloud coverage) | Continuous coverage (see through clouds) |
| Extremely high-resolution data allowing for detection of forest density or minor construction flaws | Observes progression of surface deformation - ideal for analyzing structural health of infrastructure and future maintenance planning |
| Airborne - ability to choose when and where to collect data | Space borne - data collected at pace and path of satellite orbit. (SAR can also be airborne) |
| Predefined area of interest | Monitors area in orbit path |
| Type of spectrum: infrared | Type of spectrum: microwave |
| Single-frequency | Multi-frequency |
Differences between LiDAR and SAR
LiDAR SAR Weather dependent (blocked by cloud coverage) Continuous coverage (see through clouds) Extremely high-resolution data al...
Read moreOutput of the application
Satellite line-of-sight
Basic displacement information provided by the service is the satellite line-of-sight (LOS), with projected to ground geometry and quality measures pe...
Read moreMethodology
SAR
The main source of information for deriving ground motion data are Synthetic Aperture Radar (SAR) data from the ESA Copernicus Sentinel-1 mission. Th...
Read moreThe Data
Sentinel 1
Sentinel-1 routinely collects data in three modes: Interferometric Wide Swath (IW), Extra Wide Swath (EW) and Wave (WV). The latter two are used for m...
Read moreHistory
About InSAR
Synthetic Aperture Radar Interferometry (InSAR) is the main technology for space based ground motion measurement. It has been in use for more than 25 ...
Read moreApplication
Data Delivery
This service offers analyzed data in powerful yet simple to operate visual mapping application. SILLE enables data analytics, comparison, reporting an...
Read moreSille uses InSAR satellites
Sille uses European Space Agency Interferometric synthetic aperture radar (InSAR) satelite Sentinel-1 to gather information. What is InSAR? InSar is...
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