Patents by Inventor Thomas J. Kragh

Thomas J. Kragh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Radar detection of endo-clutter high-value targets using tracker feedback
    Patent number: 10054680
    Abstract: A radar signal target detection and display system employs feedback to produce improved detection and tracking. Portions of the radar images for each antenna channel to search for the target of interest are defined using the track state to define the center of the search region and using the track covariance matrix to define the size of the region. Moving reference processing (MRP) is performed. MRP employs a search centered on the motion state derived from the detection sent to the tracker on the previous coherent processing interval (CPI). Space-time adaptive processing (STAP) is employed on each CPI using a unique set of adaptive degrees of freedom (DOFs) derived from pre-MRP and post-MRP complex radar image amplitudes for each antenna channel.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 21, 2018
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Gregory J. Owirka, Douglas A. Page, Thomas J. Kragh, Howard E. Nichols
  • RADAR DETECTION OF ENDO-CLUTTER HIGH-VALUE TARGETS USING TRACKER FEEDBACK
    Publication number: 20160170019
    Abstract: A radar signal target detection and display system employs feedback to produce improved detection and tracking. Portions of the radar images for each antenna channel to search for the target of interest are defined using the track state to define the center of the search region and using the track covariance matrix to define the size of the region. Moving reference processing (MRP) is performed. MRP employs a search centered on the motion state derived from the detection sent to the tracker on the previous coherent processing interval (CPI). Space-time adaptive processing (STAP) is employed on each CPI using a unique set of adaptive degrees of freedom (DOFs) derived from pre-MRP and post-MRP complex radar image amplitudes for each antenna channel.
    Type: Application
    Filed: June 11, 2015
    Publication date: June 16, 2016
    Inventors: Gregory J. Owirka, Douglas A. Page, Thomas J. Kragh, Howard E. Nichols