Patents by Inventor Brian M. Sun

Brian M. Sun 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).

  • Multi-inertial measurement unit fusion for fine-resolution position estimation
    Patent number: 11435485
    Abstract: A method comprises: obtaining a GPS measurement; obtaining a first IMU measurement; obtaining a second IMU measurement; applying a first particle filter to the GPS measurement and the first IMU measurement to obtain a first position solution; applying a second particle filter to the GPS measurement and the second IMU measurement to obtain a second position solution; calculating a first sensor weight of the first position solution based on a likelihood function; calculating a second sensor weight of the second position solution based on the likelihood function; resampling the first position solution based on the first sensor weight to obtain a first resampled position solution; resampling the second position solution based on the second sensor weight to obtain a second resampled position solution; and calculating a final position estimate based on the GPS measurement, the first resampled position solution, and the second resampled position solution.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: September 6, 2022
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Jay W. McDaniel, Mark B. Yeary, Hjalti H. Sigmarsson, Brian M. Sun
  • Multi-Inertial Measurement Unit Fusion for Fine-Resolution Position Estimation
    Publication number: 20220179102
    Abstract: A method comprises: obtaining a GPS measurement; obtaining a first IMU measurement; obtaining a second IMU measurement; applying a first particle filter to the GPS measurement and the first IMU measurement to obtain a first position solution; applying a second particle filter to the GPS measurement and the second IMU measurement to obtain a second position solution; calculating a first sensor weight of the first position solution based on a likelihood function; calculating a second sensor weight of the second position solution based on the likelihood function; resampling the first position solution based on the first sensor weight to obtain a first resampled position solution; resampling the second position solution based on the second sensor weight to obtain a second resampled position solution; and calculating a final position estimate based on the GPS measurement, the first resampled position solution, and the second resampled position solution.
    Type: Application
    Filed: May 14, 2021
    Publication date: June 9, 2022
    Inventors: Jay W. McDaniel, Mark B. Yeary, Hjalti H. Sigmarsson, Brian M. Sun