Patents by Inventor Marie KAWAI

Marie KAWAI 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).

  • Dual polarization radar apparatus and radar signal processing method
    Patent number: 10795017
    Abstract: A linear-depolarization ratio calculator (12) is configured so as to determine a radar reflectivity factor Zhh in transmission of a horizontally polarized wave and reception of a horizontally polarized wave, the radar reflectivity factor being a reflected wave intensity after integration of a reflected wave intensity Vhh(n) calculated by a reflected-wave intensity calculator (11), and a radar reflectivity factor Zvh in transmission of a horizontally polarized wave and reception of a vertically polarized wave, the radar reflectivity factor being a reflected wave intensity after integration of a reflected wave intensity Vvh(n+2) and calculate a linear depolarization ratio LDRvh which is the ratio between the radar reflectivity factor Zhh and the radar reflectivity factor Zvh. As a result, even when three types of polarized-wave transmission/reception processing elements are repeatedly performed, the linear depolarization ratio LDRvh can be calculated.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 6, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Marie Kawai, Hiroshi Sakamaki, Nobuhiro Suzuki, Tomoya Matsuda
  • DUAL POLARIZATION RADAR APPARATUS AND RADAR SIGNAL PROCESSING METHOD
    Publication number: 20180292530
    Abstract: A linear-depolarization ratio calculator (12) is configured so as to determine a radar reflectivity factor Zhh in transmission of a horizontally polarized wave and reception of a horizontally polarized wave, the radar reflectivity factor being a reflected wave intensity after integration of a reflected wave intensity Vhh(n) calculated by a reflected-wave intensity calculator (11), and a radar reflectivity factor Zvh in transmission of a horizontally polarized wave and reception of a vertically polarized wave, the radar reflectivity factor being a reflected wave intensity after integration of a reflected wave intensity Vvh(n+2) and calculate a linear depolarization ratio LDRvh which is the ratio between the radar reflectivity factor Zhh and the radar reflectivity factor Zvh. As a result, even when three types of polarized-wave transmission/reception processing elements are repeatedly performed, the linear depolarization ratio LDRvh can be calculated.
    Type: Application
    Filed: September 29, 2015
    Publication date: October 11, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Marie KAWAI, Hiroshi SAKAMAKI, Nobuhiro SUZUKI, Tomoya MATSUDA