Patents by Inventor Joshua Markow

Joshua Markow 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).

  • Geolocation of beyond LOS HF emitters
    Patent number: 10324160
    Abstract: An apparatus having processing circuitry configured to estimate beyond line-of-sight emitter location may be configured to receive signal information indicative of TDOA and FDOA measurements at a first receiver and a second receiver. The signal information may be generated based on indirect wave signals received from the emitter at each of the first and second receivers. The processing circuitry may be further configured to employ a first analytical model of the ionosphere to generate coarse TDOA and FDOA contour maps, and generate a first geolocation estimate based on the coarse TDOA and FDOA contour maps.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: June 18, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Neil A. Jacklin, Gregory P. Richards, Joshua Markow
  • GEOLOCATION OF BEYOND LOS HF EMITTERS
    Publication number: 20170205492
    Abstract: An apparatus having processing circuitry configured to estimate beyond line-of-sight emitter location may be configured to receive signal information indicative of TDOA and FDOA measurements at a first receiver and a second receiver. The signal information may be generated based on indirect wave signals received from the emitter at each of the first and second receivers. The processing circuitry may be further configured to employ a first analytical model of the ionosphere to generate coarse TDOA and FDOA contour maps, and generate a first geolocation estimate based on the coarse TDOA and FDOA contour maps.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Neil A. Jacklin, Gregory P. Richards, Joshua Markow