Patents by Inventor Leizheng SHU

Leizheng SHU 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 achieving space-based autonomous navigation of global navigation satellite system (GNSS) satellites
    Patent number: 11442178
    Abstract: Disclosed is a method for achieving space-based autonomous navigation of global navigation satellite system (GNSS) satellites, and relates to the field of satellite navigation technologies. The method includes the following steps: optimizing a DRO, and establishing a dynamic model of an earth-moon space satellite orbit; establishing measurement links, by a low earth orbit (LEO) data relay satellite, with an earth-moon space DRO satellite and a GNSS respectively, and measuring an inter-satellite distance for modeling and linearization; adopting an extended Kalman filter (EKF) method to process inter-satellite measurement data, and autonomously determining a position and velocity of the global navigation satellite system without depending on the ground measurement and control support.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: September 13, 2022
    Assignee: TECHNOLOGY AND ENGINEERING CENTER FOR SPACE UTILIZATION, CHINESE ACADEMY OF SCIENCES
    Inventors: Wenbin Wang, Yang Gao, Leizheng Shu, Jiangkai Liu
  • METHOD FOR ACHIEVING SPACE-BASED AUTONOMOUS NAVIGATION OF GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SATELLITES
    Publication number: 20200319350
    Abstract: Disclosed is a method for achieving space-based autonomous navigation of global navigation satellite system (GNSS) satellites, and relates to the field of satellite navigation technologies. The method includes the following steps: optimizing a DRO, and establishing a dynamic model of an earth-moon space satellite orbit; establishing measurement links, by a low earth orbit (LEO) data relay satellite, with an earth-moon space DRO satellite and a GNSS respectively, and measuring an inter-satellite distance for modeling and linearization; adopting an extended Kalman filter (EKF) method to process inter-satellite measurement data, and autonomously determining a position and velocity of the global navigation satellite system without depending on the ground measurement and control support.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 8, 2020
    Inventors: Wenbin WANG, Yang GAO, Leizheng SHU, Jiangkai LIU