Patents by Inventor Donald D. Dean

Donald D. Dean 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).

  • Rain versus target discrimination for doppler radars
    Patent number: 6937185
    Abstract: A method of removing returns from rain in Doppler radar systems (and corresponding apparatus and computer software) comprising receiving a Doppler radar return signal, transforming the signal into a range versus frequency map, for a plurality of range cells, performing a fit over frequency, for the plurality of range cells, calculating a total energy, for the plurality of range cells, comparing the calculated total energy to a threshold value, and replacing the return signal for a range cell with another signal if for the plurality of range cells the comparing step is positive.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: August 30, 2005
    Assignee: Lockheed Martin Corporation
    Inventors: Ivan Collazo, Donald D. Dean