Patents by Inventor Daniel S. Summers

Daniel S. Summers 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).

  • Location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform
    Patent number: 10901065
    Abstract: Systems, methods, and apparatus for location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform are disclosed. In one or more embodiments, a disclosed system allows for location determination of stationary, pulsed radio frequency (RF) emitters from a moving platform by using coherent frequency of arrival (CFOA) Doppler history measurements. The term “coherent” is used to indicate that the process requires a RF-coherent pulse train, such as that generated by modern radar. In one or more embodiments, the disclosed system employs one of two disclosed CFOA measurement methods (Method 1: CFOA linear regression of phase (LRP), and Method 2: CFOA cross-correlated frequency spectra (CCFS)). The disclosed system also enables geo-discrimination (GeoD) of emitters at known locations, or alternatively geo-location of emitters at unknown locations.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 26, 2021
    Assignee: The Boeing Company
    Inventors: Brian K. Pheiffer, David O. Edewaard, Daniel S. Summers, Neal Carlson
  • LOCATION DETERMINATION OF AN EMITTER USING FREQUENCY-OF-ARRIVAL (FOA) MEASURED FROM A SINGLE MOVING PLATFORM
    Publication number: 20190107599
    Abstract: Systems, methods, and apparatus for location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform are disclosed. In one or more embodiments, a disclosed system allows for location determination of stationary, pulsed radio frequency (RF) emitters from a moving platform by using coherent frequency of arrival (CFOA) Doppler history measurements. The term “coherent” is used to indicate that the process requires a RF-coherent pulse train, such as that generated by modern radar. In one or more embodiments, the disclosed system employs one of two disclosed CFOA measurement methods (Method 1: CFOA linear regression of phase (LRP), and Method 2: CFOA cross-correlated frequency spectra (CCFS)). The disclosed system also enables geo-discrimination (GeoD) of emitters at known locations, or alternatively geo-location of emitters at unknown locations.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 11, 2019
    Inventors: Brian K. Pheiffer, David O. Edewaard, Daniel S. Summers, Neal Carlson