Abstract
A system and method for generating radio tomographic images is provided. A plurality of transceivers positioned around a region to be imaged is divided into a plurality of pixels. A control apparatus is configured to cause each of the plurality of transceivers in turn to send a signal to each of the other transceivers. The control apparatus is further configured to determine an attenuation in the received signals, generate weighing, derivative, and attenuation matrices from the signals, group the pixels into a plurality of provinces, select each province in turn and solve for a change in attenuation in each of the pixels while setting the pixels in other provinces to zero, aggregate solutions from each of the provinces into a rough estimate, re-solve each province using the aggregated rough estimate, aggregate the re-solved solutions from each province into a refined estimate, and generate an image from the refined estimate.
Document Type
Patent
Status
Issued
Issue Date
8-20-2019
Patent Number
US 10386449 B2 [ 10,386,449 ]
CPC Classification
G01S3/02; G01S5/02; G01S5/14
Application number
15/040,585
Assignees
United States of America as represented by the Secretary of the Air Force , Wright - Patterson AFB , OH ( US )
Filing Date
2-10-2016
Recommended Citation
Martin, Richard K. System and Method for Radio Tomographic Image Formation. United States Patent 10386449, issued 20 August 2019. https://scholar.afit.edu/patents/14