Patents by Inventor Theodore J. Peregrim

Theodore J. Peregrim 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).

  • Patent number: 5430445
    Abstract: A synthetic aperture radar guidance system adapted for use in a guided missile is described wherein the frequency of the transmitted pulses changes with time with a chirp slope which varies with range. The time between pulses also changes as a function of range. The desired values of the chirp slope and the interpulse interval are computed for all values within a range of interest and stored. Furthermore, the operating parameters of the SAR are changed as the range changes. The time intervals and frequencies are selected to avoid interruption ambiguities and eclipsing. The phase and frequency of the synthesized signal are controlled to adjust for motion of a vehicle on which the SAR is mounted. The SAR is operated in several modes. In a search mode, the beam of transmitted pulses is steered across a mapping area to form a plurality of patches of the mapping area. The patches are combined into one map of the entire area. Each pixel of the map is compared with a target template until a match is provided.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: July 4, 1995
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Frank A. Okurowski, Albert H. Long
  • Patent number: 5424742
    Abstract: A synthetic aperture radar guidance system adapted for use in a guided missile is described wherein the frequency of the transmitted pulses changes with time with a chirp slope which varies with range. The time between pulses also changes as a function of range. The desired values of the chirp slope and the interpulse interval are computed for all values within a range of interest and stored. Furthermore, the operating parameters of the SAR are changed as the range changes. The time intervals and frequencies are selected to avoid interruption ambiguities and eclipsing. The phase and frequency of the synthesized signal are controlled to adjust for motion of a vehicle on which the SAR is mounted. The SAR is operated in several modes. In a search mode, the beam of transmitted pulses is steered across a mapping area to form a plurality of patches of the mapping area. The patches are combined into one map of the entire area. Each pixel of the map is compared with a target template until a match is provided.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: June 13, 1995
    Assignee: Raytheon Company
    Inventors: Albert H. Long, Theodore J. Peregrim, Mon Y. Young, Allan C. Vanuga, Walter H. Storm
  • Patent number: 5245347
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic countermeasures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radomeinduced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: September 14, 1993
    Assignee: Raytheon Company
    Inventors: Gerald A. Bonta, George W. Ogar, Theodore J. Peregrim, Rosario Mangiapane
  • Patent number: 5225839
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic counter-measures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome of a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 6, 1993
    Inventors: Frank A. Okurowski, Rosario Mangiapane, Theodore J. Peregrim, Arthur Crain
  • Patent number: 5225838
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic countermeasures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 6, 1993
    Assignee: Raytheon Company
    Inventors: Irving Kanter, Donald C. Null, George W. Ogar, Theodore J. Peregrim
  • Patent number: 5173949
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: December 22, 1992
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Stephen L. Richter, Albert H. Long
  • Patent number: 5173707
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic countermeasures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 22, 1992
    Assignee: Raytheon Company
    Inventors: Rosario Mangiapane, Theodore J. Peregrim, Arthur Crain, Gordon L. Kettering, Ken W. Chang
  • Patent number: 5172125
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic counter-measures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for randome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 15, 1992
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Rosario Mangiapane, Arthur Crain, Gerald A. Bonta
  • Patent number: 5172120
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic countermeasures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome of a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 15, 1992
    Assignee: Raytheon Company
    Inventors: Nathan Slawsby, Theodore J. Peregrim, Richard B. Watson, Jr., Edward J. Sheldon
  • Patent number: 5172119
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic counter measures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 15, 1992
    Assignee: Raytheon Company
    Inventors: Benjamin L. Young, Arthur Crain, Gerald A. Bonta, Frank A. Okurowski, Gordon L. Kettering, Theodore J. Peregrim, Rosario Mangiapane
  • Patent number: 5172118
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic counter-measures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 15, 1992
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Rosario Mangiapane, George W. Ogar
  • Patent number: 5172122
    Abstract: An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic countermeasures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: December 15, 1992
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Rosario Mangiapane, Arthur Crain
  • Patent number: 5168530
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: December 1, 1992
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Stephen L. Richter, Harold J. Geller
  • Patent number: 5168529
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: December 1, 1992
    Assignee: Rayethon Company
    Inventors: Theodore J. Peregrim, Albert H. Long, Irving Kanter
  • Patent number: 5052045
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: September 24, 1991
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Albert H. Long, Stephen L. Richter, Harold J. Geller, Irving Kanter, Gordon Kettering
  • Patent number: 5027422
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: June 25, 1991
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Gordon L. Kettering, Irving Kanter
  • Patent number: 5018218
    Abstract: A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: May 21, 1991
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Stephen L. Richter, Richard E. Roy
  • Patent number: 4881079
    Abstract: An improved radar is disclosed wherein an array of digital numbers describing a target area is produced. The numbers have values representing differences in ranges between the radar and reflecting points in an area on the ground illuminated by the radar. The values also represent the differences in angles between the radar and the reflecting points.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: November 14, 1989
    Assignee: Raytheon Company
    Inventor: Theodore J. Peregrim
  • Patent number: 4486756
    Abstract: A method of reducing angle noise in return signals to a monopulse radar having a radome is shown to consist of the steps of: (a) transmitting a pair of signals at frequencies equally spaced above and below the tuning frequency of the radome; (b) digitally processing the return signals to form the complex monopulse ratios of the return signals corresponding to each one of the transmitted signals; (c) determining, by comparing the magnitudes of each monopulse sum and monopulse difference signals with the level of respective predetermined sum and difference reference signals, whether or not angle noise is exhibited and whether or not the signs of the imaginary parts of the monopulse difference signals differ; (d) comparing, to a threshold level, the amplitudes of the monopulse difference signals of those return signals which exhibit angle noise to select return signals exceeding such threshold level and whose signs differ; and, (e) averaging the real parts of the complex monopulse ratios of the return signals wh
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: December 4, 1984
    Assignee: Raytheon Company
    Inventors: Theodore J. Peregrim, Irving Kanter, Rosario Mangiapane