Class GroundPointingAttitudeModifier

    • Constructor Detail

      • GroundPointingAttitudeModifier

        protected GroundPointingAttitudeModifier​(Frame inertialFrame,
                                                 Frame bodyFrame,
                                                 GroundPointing groundPointingLaw)
        Constructor.
        Parameters:
        inertialFrame - frame in which orbital velocities are computed
        bodyFrame - the frame that rotates with the body
        groundPointingLaw - underlying ground pointing attitude law
    • Method Detail

      • getBaseState

        public Attitude getBaseState​(PVCoordinatesProvider pvProv,
                                     AbsoluteDate date,
                                     Frame frame)
        Compute the base system state at given date, without modifications.
        Parameters:
        pvProv - provider for PV coordinates
        date - date at which state is requested
        frame - reference frame from which attitude is computed
        Returns:
        satellite base attitude state.
      • getBaseState

        public <T extends CalculusFieldElement<T>> FieldAttitude<T> getBaseState​(FieldPVCoordinatesProvider<T> pvProv,
                                                                                 FieldAbsoluteDate<T> date,
                                                                                 Frame frame)
        Compute the base system state at given date, without modifications.
        Type Parameters:
        T - type of the field elements
        Parameters:
        pvProv - provider for PV coordinates
        date - date at which state is requested
        frame - reference frame from which attitude is computed
        Returns:
        satellite base attitude state.
      • getTargetPV

        public TimeStampedPVCoordinates getTargetPV​(PVCoordinatesProvider pvProv,
                                                    AbsoluteDate date,
                                                    Frame frame)
        Compute the target point position/velocity in specified frame.
        Specified by:
        getTargetPV in class GroundPointing
        Parameters:
        pvProv - provider for PV coordinates
        date - date at which target point is requested
        frame - frame in which observed ground point should be provided
        Returns:
        observed ground point position (element 0) and velocity (at index 1) in specified frame
      • getTargetPosition

        protected Vector3D getTargetPosition​(PVCoordinatesProvider pvProv,
                                             AbsoluteDate date,
                                             Frame frame)
        Compute the target point position in specified frame.
        Overrides:
        getTargetPosition in class GroundPointing
        Parameters:
        pvProv - provider for PV coordinates
        date - date at which target point is requested
        frame - frame in which observed ground point should be provided
        Returns:
        observed ground point position in specified frame
      • getTargetPosition

        protected <T extends CalculusFieldElement<T>> FieldVector3D<T> getTargetPosition​(FieldPVCoordinatesProvider<T> pvProv,
                                                                                         FieldAbsoluteDate<T> date,
                                                                                         Frame frame)
        Compute the target point position in specified frame.
        Overrides:
        getTargetPosition in class GroundPointing
        Type Parameters:
        T - type of the field elements
        Parameters:
        pvProv - provider for PV coordinates
        date - date at which target point is requested
        frame - frame in which observed ground point should be provided
        Returns:
        observed ground point position in specified frame