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Micro Movement
Not Only Have Satellite-Borne or Airborne SAR System
Let Your Stunning of Slope Slight Changes Monitoring Tool
The radar will be mounted onto a fixed platform at a remote distance from the potenial hazardous area.
The radar will perform periodic monitoring at a predefined interval ( typically 1-2 scans per hour ).
An onboard SAR processor will generate a high precision InSAR image the area under observation.
The InSAR image will then be sent back to a secured data center via wireless link for further analysis.
In the event a potential hazard has been detected, early warning will be triggered to alert people for evacuation.
Micro Movement
Effective tool for preventive monitoring of
structural health and earth environments
Micro Movement
Features
- Nom-destructive remote sensing
- High resolution change detection in cm range
- Wide area coverage and complete 3D modeling
- All weather, 24/7 perriodic monitoring
- Suitable to monitor ground movements and instability in man-made structures
Specification
Specification iAGS-4800A iAGS-2200A iAGS-2200M
Range 4 KM 2 KM 2 KM
Syn length 2 m(az = 4.4 mrad) 1.5 m(az = 5.8 mrad) 1.5 m(az = 5.8 mrad)
Sweep bandwidth 800 MHz 200 MHz 200 MHz
New monitoring tool for slopeland hazard and land subsidence
Slopeland observation results by Micro Movement
Instrument: Ku-band Micro Movement ( light-weight and high-mobility )
Date: 2014 / 11 / 21 - 2014 / 11 / 24
Location: Meihua elementary school, Jianshi Township, Hsinchu County, Taiwan
Altitude of the target: 485 - 610 meters
Observation distance: 500 - 1000 meters
Number of observation times: 5
Spatial resolution: 4-6 meters in azimuth direction, 0.65 meter in range direction
In this experiment, we use 3 - 4 corner reflectors for validation of georeferenced image. In the RADAR echo map down-below, we can see that the location of corner reflectors presents higher echo intensity.
( Corner reflectors are indicated by yellow cross marks in the left and middle diagram )
Micro Movement
By these 5 observations, we demonstrated that this short-wavelength Ku band GB-SAR system can be used to analyze ground deformation and estimate slight changes of the ground movement.
Micro Movement
Coherence Interferogram
Micro Movement
Slant Range Displacement ( SRD ) Insar fringe
Micro Movement
Removed topographic fringe dh retrieved from GBdinSAR
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