Detecting an underground object

摘要

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.

主权项

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; determining a velocity that at least one of the first radar signal and the second radar signal traveled through a medium between the object and the surface of the ground; estimating a dielectric constant associated with the medium based on the velocity that at least one of the first radar signal and the second radar signal traveled through the medium; and estimating a position of the object by maximizing a correlation between the first view and the second view by adjusting the estimated dielectric constant associated with the 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.