Back to results
US 12,111,391 B1Granted
Positional accuracy using ground penetrating radar
AssigneeGeophysical Survey Systems, Inc.
InventorDavid Cist
Life of this patent
Estimating the term…
Abstract
A system for obtaining improved position accuracy with ground penetrating radar includes a position locating device capable of detecting objects, such as substrate objects, at at least two points along an extent thereof. Methods for its use include collecting, modeling, and comparing detected radar data with other detected radar data and/or previously input data and/or assumed and/or predicted data.
Claims20
A position locating device comprising:
- a ground penetrating radar transceiver;
- and
- a location determining system;
- wherein said device is configured such that a first detection, by way of said ground penetrating radar transceiver, of a first subsurface object at, at least, two different points, said two different points extending in a direction other than a path of travel of said position locating device during said first detection, is used to correct a pose of said position locating device relative to said first subsurface object based on an assumed or determined linear extent of said subsurface object.
1 more element
A method of correcting for pose errors of a position locating device, comprising the following steps:
- determining a substantial pose error of a position locating device;
- detecting, in a first step of detection, by way of a ground penetrating radar transceiver of said position locating device, at least one set of subsurface radar data;
- creating, using said at least one set of subsurface radar data, an inverse model of reflections and/or diffractions included within said at least one set of subsurface radar data;
- comparing said inverse model with known, determined, and/or assumed subsurface data;
- calculating a best-fit pose between said inverse model and said known, determined, and/or assumed subsurface data;
- mapping said best-fit pose to a most likely pose of said position locating device;
- and
- predicting at least one most likely pose of at least one anticipated subsequent set of subsurface radar data to be detected, in at least a second step of detection, by way of said ground penetrating radar transceiver of said position locating device.
5 more elements
Dependencies are inferred from the claim text.