Patents by Inventor Jae-Hyoun HA

Jae-Hyoun HA 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 for estimating angle of arrival of multi-target moving at high speed
    Patent number: 9869746
    Abstract: A method for estimating an angle of arrival of multiple targets moving at a high speed includes defining a range and a resolving power of an angle of arrival and an angular velocity of a plurality of direction finding targets (S1100), setting minimum values of the angle of arrival and the angular velocity within the range to be a set angle of arrival and a set angular velocity (S1200), and adding angle of arrival resolution and angular velocity resolution to the set angle of arrival and the set angular velocity, respectively, deriving a two-dimensional spatial spectrum of a transformed incident signal using a pre-steered vector until the angle of arrival and the angular velocity become a maximum value, and estimating a peak value of the spatial spectrum as a measured angle of arrival and a measured angular velocity of the target (S1300).
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: January 16, 2018
    Assignee: AGNECY FOR DEFENCE DEVELOPMENT
    Inventors: Jae-Hyoun Ha, Woong Park, Sang-Min Kim, Yong-Jae Lee
  • METHOD FOR ESTIMATING ANGLE OF ARRIVAL OF MULTI-TARGET MOVING AT HIGH SPEED
    Publication number: 20150362580
    Abstract: A method for estimating an angle of arrival of multiple targets moving at a high speed includes defining a range and a resolving power of an angle of arrival and an angular velocity of a plurality of direction finding targets (S1100), setting minimum values of the angle of arrival and the angular velocity within the range to be a set angle of arrival and a set angular velocity (S1200), and adding angle of arrival resolution and angular velocity resolution to the set angle of arrival and the set angular velocity, respectively, deriving a two-dimensional spatial spectrum of a transformed incident signal using a pre-steered vector until the angle of arrival and the angular velocity become a maximum value, and estimating a peak value of the spatial spectrum as a measured angle of arrival and a measured angular velocity of the target (S1300).
    Type: Application
    Filed: November 21, 2014
    Publication date: December 17, 2015
    Inventors: Jae-Hyoun HA, Woong PARK, Sang-Min KIM, Yong-Jae LEE