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AssigneeLawrence Livermore National Security, LLC
InventorsDavid W. Paglieroni, David H. Chambers, Steven W. Bond, N. Reginald Beer
Estimating the term…
A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.
A method performed by a computing device for generating a statistic for a down-track location from an original reconstructed image frame and a post-processed image frame, the original reconstruction image frame and the post-processed image frame being different representations of the same sample collected for the down-track location, the image frames having pixels with values, the method comprising:
A computer-readable storage device storing computer-executable instructions for controlling a computing device to detect an object within a sequence of image frames generated for down-track locations, each down-track location having a reconstructed image frame and post-processed image frame, the reconstructed image frame and the post-processed image frame representing the same image for a down-track location at the same sampling time, by a method comprising:
A computing device for generating a statistic for a down-track location from a reconstructed image frame and a post-processed image frame, the image frames generated from return signals acquired at the down-track location at the same sampling time by receivers from ground-penetrating radar signals emitted by transmitters, the transmitters and receivers operating in a multistatic mode, comprising:
The computing device of 18 wherein a peak of sufficient height in the statistics that is separated by a minimum number of statistics represents a buried object.
Dependencies are inferred from the claim text.