Patents Assigned to Lockheed Martin Mission Systems
  • Publication number: 20030218565
    Abstract: An adaptive broadcast radar system for tracking targets is disclosed, the radar system includes a transmitter having sub-apertures and a receiver having sub-apertures. The transmitter sub-apertures generate and code a signal waveform. The signal waveform is coded with data about the transmitter, including the degrees of freedom. The receiver receives signals comprising direct path signals and scattered signals correlating to the signal waveforms from the transmitter. The receiver includes a signal processor that regenerates a transmit beam for the coded data, delay, and doppler information from the received signals. The signal processor generates data quads encapsulating the information.
    Type: Application
    Filed: November 28, 2001
    Publication date: November 27, 2003
    Applicant: Lockheed Martin Mission Systems
    Inventor: Robert D. Budic
  • Patent number: 6522295
    Abstract: A system and method for enhancing object state awareness is disclosed. The system includes a receiver subsystem that receives reference signals from an uncontrolled transmitter and scattered transmissions originating from the uncontrolled transmitter and scattered by an object. The system also includes a front-end processing subsystem that determines a radial velocity of the object based on the received transmissions. The system also includes a back-end processing subsystem that determines object state estimates based on the determined radial velocity.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 18, 2003
    Assignee: Lockheed Martin Mission Systems
    Inventors: Kevin W. Baugh, Richard Lodwig, Robert Benner
  • Publication number: 20020053982
    Abstract: A civil aviation passive coherent location system and method is disclosed. A receiver subsystem receives reference transmissions from an uncontrolled transmitter. The receiver subsystem also receives scattered transmissions originating from the uncontrolled transmitter and scattered by an airborne object. The received transmissions are compared to determine measurement differentials, such a frequency-difference-of-arrival, a time-difference-of-arrival and an angle of arrival. From the measurement differentials, an object state estimate is determined. A previous state estimate may be updated with the determined state estimate. Processing subsystems determine the measurement differentials and state estimates.
    Type: Application
    Filed: October 22, 2001
    Publication date: May 9, 2002
    Applicant: Lockheed Martin Mission Systems
    Inventors: Kevin W. Baugh, Richard Lodwig, Robert Benner