Static RF imaging for inside walls of a premises
AssigneeTialinx, Inc.
InventorsFarrokh Mohamadi, Soumya K. Nag
Life of this patent
Estimating the term…
Abstract
A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interior structural features based on the markers. A method includes: scanning a building structure from the exterior of the structure using a radar unit to provide raw data; processing the raw data into markers of interior locations of the structure; estimating locations of interior structural features of the structure from the markers; and displaying an image of the interior structural features.
Claims8
A system comprising:
- a radar unit configured to provide raw data from scanning an exterior of a structure, wherein the raw data from scanning is provided from multiple scan locations;
- and
- a signal processing and imaging module configured to:
- process the raw data into markers of interior locations of the structure;
- populate an image grid having a first axis and a second axis with wall-coordinate pixels estimated from the multiple scan locations;
- demarcate an interior wall of the structure from the wall-coordinate pixels by a line passing through the first axis at a fixed pixel location on the first axis and parallel to the second axis if the wall-coordinate pixels along the line satisfy a pre-determined criterion;
- and
- display an image of interior structural features based on the markers.
A method comprising:
- scanning a building structure from the exterior of the structure using a radar unit to provide raw data;
- processing the raw data into markers of interior locations of the structure, further comprising:
- summing waveforms of the raw data from multiple locations;
- smoothing the summed waveforms using a moving average filter into an integrated waveform;
- determining clusters of markers based on a threshold detector applied to the integrated waveform;
- assigning each cluster a single marker at the center of the cluster based on a criterion that clusters of markers are separated from each other by at least a pre-chosen distance parameter Rcluster, min;
- estimating locations of interior structural features of the structure from the markers;
- and
- displaying an image of the interior structural features.
Dependencies are inferred from the claim text.