Patents Assigned to Fredwal, Inc.
  • Process for evaluating phased array antennas
    Patent number: 6507312
    Abstract: A process for evaluating the radar pattern of a phased array antenna subsystem by utilizing transmissions from a global positioning satellite. This process utilizes a delayed radar target on a moving platform, a remote differential global positioning receiver on the moving platform, a fixed global positioning receiver on the phased array antenna, and a communication data link between the remote global positioning receiver and the fixed global positioning receiver.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: January 14, 2003
    Assignee: Fredwal, Inc.
    Inventors: Duane G. Fredericks, Herbert W. Rosebrock, James N. Devlin