DETECTING AN UNDERGROUND OBJECT
First Claim
1. A method of detecting an underground object, the method comprising:
- determining a first view of the object, which is at least partially under a surface of ground, by transmitting a first radar signal from a first known geolocation;
determining a second view of the object by transmitting a second radar signal from a second known geolocation, wherein respective first and second trajectories of the first and second radar signals are oblique with respect to the surface of the ground and the respective first and second trajectories are at a first angle with respect to each other; and
estimating a position of the object by maximizing a correlation between the first view and the second view by adjusting an estimated dielectric constant associated with a medium between the object and the surface of the ground, wherein the determining of the first view, the determining of the second view, and the estimating are performed by one or more computer processors.
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Accused Products
Abstract
In a method of detecting an underground object which is at least partially under a surface of ground, a first view of the object determined by transmitting a first radar signal from a first known geolocation. A second view of the object is determined by transmitting a second radar signal from a second known geolocation. The respective first and second trajectories of the first and second radar signals are oblique with respect to the surface of the ground and the respective first and second trajectories are at a first angle with respect to each other. A position of the object is estimated by maximizing a correlation between the first view and the second view by adjusting an estimated dielectric constant associated with medium between the object and the surface of the ground.
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Citations
31 Claims
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1. A method of detecting an underground object, the method comprising:
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determining a first view of the object, which is at least partially under a surface of ground, by transmitting a first radar signal from a first known geolocation; determining a second view of the object by transmitting a second radar signal from a second known geolocation, wherein respective first and second trajectories of the first and second radar signals are oblique with respect to the surface of the ground and the respective first and second trajectories are at a first angle with respect to each other; and estimating a position of the object by maximizing a correlation between the first view and the second view by adjusting an estimated dielectric constant associated with a medium between the object and the surface of the ground, wherein the determining of the first view, the determining of the second view, and the estimating are performed by one or more computer processors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An system for detecting an object that is underground, the system comprising:
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a transmitting radar antennae; a receiving radar antennae; a view-determining-component configured for determining a first view of the object, which is at least partially under a surface of ground, by transmitting a first radar signal from a first known geolocation; determining a second view of the object by transmitting a second radar signal from a second known geolocation, wherein respective trajectories of the first and second radar signals are oblique with respect to the surface of the ground and the respective trajectories are at a first angle with respect to each other; and a position-estimating-component configured for estimating a position of the object by maximizing a correlation between the first view and the second view by adjusting an estimated dielectric constant associated with a medium between the object and the surface of the ground. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A non-transitory computer readable storage medium having computer-executable instructions stored thereon for causing a computer system to perform a method of detecting an underground object, the method comprising:
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determining a first view of the object, which is at least partially under a surface of ground, based on transmission of a first radar signal from a first known geolocation; determining a second view of the object based on transmission of a second radar signal from a second known geolocation, wherein respective first and second trajectories of the first and second radar signals are oblique with respect to the surface of the ground and the respective first and second trajectories are at a first angle with respect to each other; and estimating a position of the object by maximizing a correlation between the first view and the second view by adjusting an estimated dielectric constant associated with a medium between the object and the surface of the ground. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification