Patents by Inventor Gerald Davieau

Gerald Davieau 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).

  • Sub-aperture sidelobe and alias mitigation techniques
    Patent number: 7215277
    Abstract: Methods for mitigating sidelobes and aliases, providing levels of suppression in excess of 20 dB. The methods may include 1) a version of the CLEAN algorithm developed in radio astronomy, modified to work on sub-aperture images; 2) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to select points in the CLEAN algorithm; and 3) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to mitigate sidelobes and aliases, in conjunction with CLEAN or separately. The methods may be used with all synthetic aperture techniques and are not limited to SAR.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: May 8, 2007
    Assignee: Essex Corp.
    Inventors: Paul W. Woodford, Gerald Davieau, James L. Lafuse
  • Sub-aperture sidelobe and alias mitigation techniques
    Publication number: 20060197698
    Abstract: Methods for mitigating sidelobes and aliases, providing levels of suppression in excess of 20 dB. The methods may include 1) a version of the CLEAN algorithm developed in radio astronomy, modified to work on sub-aperture images; 2) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to select points in the CLEAN algorithm; and 3) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to mitigate sidelobes and aliases, in conjunction with CLEAN or separately. The methods may be used with all synthetic aperture techniques and are not limited to SAR.
    Type: Application
    Filed: December 6, 2005
    Publication date: September 7, 2006
    Applicant: Essex Corp.
    Inventors: Paul Woodford, Gerald Davieau, James Lafuse
  • Sub-aperture sidelobe and alias mitigation techniques
    Patent number: 7042386
    Abstract: Methods for mitigating sidelobes and aliases, providing levels of suppression in excess of 20 dB. The methods may include 1) a version of the CLEAN algorithm developed in radio astronomy, modified to work on sub-aperture images; 2) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to select points in the CLEAN algorithm; and 3) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to mitigate sidelobes and aliases, in conjunction with CLEAN or separately. The methods may be used with all synthetic aperture techniques and are not limited to SAR.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: May 9, 2006
    Assignee: Essex Corporation
    Inventors: Paul W. Woodford, Gerald Davieau, James L. Lafuse
  • Sub-aperture sidelobe and alias mitigation techniques
    Publication number: 20040227659
    Abstract: Methods for mitigating sidelobes and aliases, providing levels of suppression in excess of 20 dB. The methods may include 1) a version of the CLEAN algorithm developed in radio astronomy, modified to work on sub-aperture images; 2) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to select points in the CLEAN algorithm; and 3) weighting functions based on the phase and amplitude statistics of the sub-aperture image pixels to mitigate sidelobes and aliases, in conjunction with CLEAN or separately. The methods may be used with all synthetic aperture techniques and are not limited to SAR.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 18, 2004
    Applicant: Essex Corp.
    Inventors: Paul W. Woodford, Gerald Davieau, James L. Lafuse