Patents by Inventor Brian R. Phelan

Brian R. Phelan 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).

  • Method and apparatus for performing dual polarization change detection using polarimetric synthetic aperture radar imagery
    Patent number: 11604271
    Abstract: Apparatus and method configured to determine locations of man-made objects within synthetic aperture radar (SAR) imagery. The apparatus and method prescreen SAR imagery to identify potential locations of man-made objects within SAR imagery. The potential locations are processed using a change detector to remove locations of natural objects to produce a target image containing location of substantially only man-made objects.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 14, 2023
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kenneth I. Ranney, David C. Wong, Tuan That Ton, Brian R. Phelan
  • METHOD AND APPARATUS FOR PERFORMING DUAL POLARIZATION CHANGE DETECTION USING POLARIMETRIC SYNTHETIC APERTURE RADAR IMAGERY
    Publication number: 20210396868
    Abstract: Apparatus and method configured to determine locations of man-made objects within synthetic aperture radar (SAR) imagery. The apparatus and method prescreen SAR imagery to identify potential locations of man-made objects within SAR imagery. The potential locations are processed using a change detector to remove locations of natural objects to produce a target image containing location of substantially only man-made objects.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 23, 2021
    Inventors: Kenneth I. Ranney, David C. Wong, Tuan That Ton, Brian R. Phelan
  • System and method for enabling radar operation in a spectrally congested environment
    Patent number: 10845461
    Abstract: Embodiments of the present invention implement a novel methodology for processing radar image data from a radar system having one or more transmitter and receiver antenna pairs. The novel methodology deliberately operates on spectrally-notched radar data. It uses a specially-adapted version of the CLEAN algorithm to mitigate the effects of frequency-band notching. Following that, it performs a non-linear sidelobe-reduction algorithm to further eliminate artifacts and produce radar imagery of much higher quality. In some cases, it exploits a specific version of the recursive sidelobe minimization (RSM) algorithm which operates in the frequency and aperture (spatial) domain.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 24, 2020
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Brian R. Phelan, Marc Allan Ressler, Kenneth I. Ranney
  • SYSTEM AND METHOD FOR ENABLING RADAR OPERATION IN A SPECTRALLY CONGESTED ENVIRONMENT
    Publication number: 20180348341
    Abstract: Embodiments of the present invention implement a novel methodology for processing radar image data from a radar system having one or more transmitter and receiver antenna pairs. The novel methodology deliberately operates on spectrally-notched radar data. It uses a specially-adapted version of the CLEAN algorithm to mitigate the effects of frequency-band notching. Following that, it performs a non-linear sidelobe-reduction algorithm to further eliminate artifacts and produce radar imagery of much higher quality. In some cases, it exploits a specific version of the recursive sidelobe minimization (RSM) algorithm which operates in the frequency and aperture (spatial) domain.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 6, 2018
    Inventors: Brian R. Phelan, Marc Allan Ressler, Kenneth I. Ranney