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    1.
    发明专利
    未知

    公开(公告)号：FR2585483B1

    公开(公告)日：1987-10-09

    申请号：FR8511500

    申请日：1985-07-26

    Applicant: THOMSON CSF

    Inventor： MURGUE JEAN-PIERRE ,  PRESSIAT ROBERT ,  ROBIN LEON

    IPC: G01C5/00 ,  G05D1/06 ,  G05D1/04 ,  G01C21/00

    Abstract: A method and device are provided for assisting in height holding in air navigation, consisting, for any point (M) of the image of the landscape flown over by the aircraft (A), located by its angle of elevation ( theta -p) with respect to the speed vector V of the aircraft, and situated in a zone between a lower elevational limit ( theta 1-p) and an upper elevational limit ( theta 2-p), in the trajectory of the aircraft, in detecting a possible deviation between the angular speed OMEGA of movement of this point with respect to the aircraft, depending on the height (h,H) of subsequent crossing of this point by the aircraft, for identical piloting conditions, and an angular reference speed of movement ( OMEGA o) corresponding to a reference height (ho,Ho) of subsequent crossing by the aircraft of a point having the same elevation ( theta -p), for identical piloting conditions, and in modifying the piloting of the aircraft, should a deviation between these angular speeds of movement be detected, so as to reduce these deviations.

    2.
    发明专利
    未知

    公开(公告)号：FR2585483A1

    公开(公告)日：1987-01-30

    申请号：FR8511500

    申请日：1985-07-26

    Applicant: THOMSON CSF

    Inventor： MURGUE JEAN-PIERRE ,  PRESSIAT ROBERT ,  ROBIN LEON

    IPC: G01C5/00 ,  G05D1/06 ,  G05D1/04 ,  G01C21/00

    Abstract: A method and device are provided for assisting in height holding in air navigation, consisting, for any point (M) of the image of the landscape flown over by the aircraft (A), located by its angle of elevation ( theta -p) with respect to the speed vector V of the aircraft, and situated in a zone between a lower elevational limit ( theta 1-p) and an upper elevational limit ( theta 2-p), in the trajectory of the aircraft, in detecting a possible deviation between the angular speed OMEGA of movement of this point with respect to the aircraft, depending on the height (h,H) of subsequent crossing of this point by the aircraft, for identical piloting conditions, and an angular reference speed of movement ( OMEGA o) corresponding to a reference height (ho,Ho) of subsequent crossing by the aircraft of a point having the same elevation ( theta -p), for identical piloting conditions, and in modifying the piloting of the aircraft, should a deviation between these angular speeds of movement be detected, so as to reduce these deviations.

    3.
    发明专利
    未知

    公开(公告)号：FR2356152A1

    公开(公告)日：1978-01-20

    申请号：FR7619422

    申请日：1976-06-25

    Applicant: THOMSON CSF

    Inventor： PRESSIAT ROBERT

    IPC: F41G7/22 ,  G01S3/786 ,  G02F1/055 ,  G01S5/16 ,  G05D1/00

    Abstract: A radiant energy detection system which allows angular location in bearing and elevation by using a simple detector element and a static mask preferably formed by a PLZT strip between two intersecting polarizers. A control circuit operates the mask to provide a configuration having a transparent zone equal to n measurement quadrants (n being a whole number equal to 1, 2 or 3) and an opaque zone equal to the remaining 4-n quadrants, and to bring about four successive operating states which are distinguished one from the next by an angular displacement of pi /2 radians around the optical axis. The control circuit operates further a switching circuit synchronously with the mask to connect the output of the detector successively to four reception channels each of which includes a high speed memory. A measuring circuit calculates the angular location from the four detected signal values stored in the memory.

    9.
    发明专利
    未知

    公开(公告)号：DE2728534A1

    公开(公告)日：1978-01-26

    申请号：DE2728534

    申请日：1977-06-24

    Applicant: THOMSON CSF

    Inventor： PRESSIAT ROBERT

    IPC: F41G7/22 ,  G01S3/786 ,  G02F1/055 ,  G01S3/78

    Abstract: A radiant energy detection system which allows angular location in bearing and elevation by using a simple detector element and a static mask preferably formed by a PLZT strip between two intersecting polarizers. A control circuit operates the mask to provide a configuration having a transparent zone equal to n measurement quadrants (n being a whole number equal to 1, 2 or 3) and an opaque zone equal to the remaining 4-n quadrants, and to bring about four successive operating states which are distinguished one from the next by an angular displacement of pi /2 radians around the optical axis. The control circuit operates further a switching circuit synchronously with the mask to connect the output of the detector successively to four reception channels each of which includes a high speed memory. A measuring circuit calculates the angular location from the four detected signal values stored in the memory.

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