Patents by Inventor Junil AHN

Junil AHN 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).

  • Apparatus of multiple targets management for multistatic PCL based target localization
    Patent number: 11604268
    Abstract: This application relates to a passive coherent location (PCL) system. In one aspect, the PCL system includes a signal measurement device configured to receive a plurality of signals from a plurality of illuminators and generate an In-phase signal and a Quadrature signal corresponding to each illuminator using the received signals. The PCL system also includes a signal processing device configured to detect a first target using the In-phase and Quadrature signals and measure a bistatic range of the first target and a bistatic velocity of the first target to generate a plurality of pieces of line track information corresponding to the first target. The PCL system further includes a locating device configured to generate target track information of the first target using the line track information and predict a position vector and a velocity vector of the first target using the target track information.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: March 14, 2023
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Inhwan Jeong, Sanhae Kim, Kyuha Song, Junil Ahn, Hyungyu Kwak, Jonghwan Lee, Sanghun Im
  • APPARATUS OF MULTIPLE TARGETS MANAGEMENT FOR MULTISTATIC PCL BASED TARGET LOCALIZATION
    Publication number: 20210318425
    Abstract: This application relates to a passive coherent location (PCL) system. In one aspect, the PCL system includes a signal measurement device configured to receive a plurality of signals from a plurality of illuminators and generate an In-phase signal and a Quadrature signal corresponding to each illuminator using the received signals. The PCL system also includes a signal processing device configured to detect a first target using the In-phase and Quadrature signals and measure a bistatic range of the first target and a bistatic velocity of the first target to generate a plurality of pieces of line track information corresponding to the first target. The PCL system further includes a locating device configured to generate target track information of the first target using the line track information and predict a position vector and a velocity vector of the first target using the target track information.
    Type: Application
    Filed: January 27, 2021
    Publication date: October 14, 2021
    Inventors: Inhwan JEONG, Sanhae KIM, Kyuha SONG, Junil AHN, Hyungyu KWAK, Jonghwan LEE, Sanghun IM