Patents by Inventor Donald C. Clendenning

Donald C. Clendenning 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).

  • Rate estimation by mixing two independent rate signals
    Patent number: 4659035
    Abstract: A method of providing an angular rate signal for attitude control in a mile flight control system by linearly mixing a derived rate signal generated from the measured attitude angle and a simulated rate signal generated from the measured nozzle angle. The derived rate is generated from the differentiation of missile attitude data and the simulated rate is generated by simulating the missile attitude dynamics based on the actual nozzle angle. The derived rate, which is filtered to remove the effects of quantization and noise is dominant at low frequencies. The simulated rate, which is filtered to block low frequencies, is dominant at higher frequencies.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: April 21, 1987
    Assignee: The United States as represented by the Secretary of the Navy
    Inventor: Donald C. Clendenning