Patents Assigned to Kelvin Hughes Limited
  • Radar apparatus
    Patent number: 7764223
    Abstract: Marine radar apparatus propagates groups of three pulses A, B, C of the same amplitude but different widths, the shorter pulse enabling detection of close range targets and the longer pulses enabling detection of longer range targets. The pulses are encoded differently with the short pulse A being a continuous wave signal and the longer pulses being modulated with a frequency modulated chirp, one pulse C being chirp up and the other B being chirp down. The power of the radar need only be about 190 w.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: July 27, 2010
    Assignee: Kelvin Hughes Limited
    Inventor: Barry Wade