STABILITY MONITORING USING SYNTHETIC APERTURE RADAR
First Claim
1. A computer-implemented method for monitoring a slope capable of detecting small surface displacements using intermittent measurement intervals spread over an extended period, the method comprising:
- at a current measurement interval, capturing radar information associated with the slope;
applying synthetic aperture radar processing to the radar information to produce one or more synthetic aperture radar images;
retrieving radar information associated with the slope from a previous measurement interval;
applying interferometry to the captured radar information from the current measurement interval and retrieved radar information from the previous measurement interval to produce a displacement map indicative of movement of the slope over time; and
displaying the displacement map to an operator.
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Accused Products
Abstract
A stability monitoring system is described that provides an accurate, automated, and remote way of monitoring small movements over a large surface area without the need to pre-place reflective targets using a mobile SAR. The stability monitoring system allows the rapid, automated identification and measurement of small surface movements over a wide field of view from a safe standoff distance without the need for personnel working in hazardous zones. Using this data, authorities can more accurately identify hazard areas and efficiently allocate mitigation resources.
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Citations
20 Claims
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1. A computer-implemented method for monitoring a slope capable of detecting small surface displacements using intermittent measurement intervals spread over an extended period, the method comprising:
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at a current measurement interval, capturing radar information associated with the slope; applying synthetic aperture radar processing to the radar information to produce one or more synthetic aperture radar images; retrieving radar information associated with the slope from a previous measurement interval; applying interferometry to the captured radar information from the current measurement interval and retrieved radar information from the previous measurement interval to produce a displacement map indicative of movement of the slope over time; and displaying the displacement map to an operator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer system for monitoring movement of a geophysical region over time, the system comprising:
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a radar component configured to collect radar information about the geophysical region; a geophysical data store configured to store information about the geophysical region, wherein the stored information includes previously collected radar information; a data processing component configured to process the collected radar information and previously collected radar information to detect movements in the geophysical region; and a user interface component configured to report results of the data processing component to an operator of the system. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A computer-readable medium encoded with instructions for controlling a computer system to display movement of a rock wall, by a method comprising:
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identifying a location for placing a mobile synthetic aperture radar device, wherein the location has a possibility of rock fall; performing a series of radar scans of the location from the mobile synthetic aperture radar device; storing information associated with the series of radar scans in a data store; after a period over which the location may have changed, performing a second series of radar scans of the location; comparing the first series of radar scans with the second series of radar scans to identify movement indicative of a potential rock fall; and displaying results associated with the identified movement. - View Dependent Claims (18, 19, 20)
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Specification