sun_sensor Class Reference

A geometric sun sensor model. More...

#include <sun_sensor.h>

Inherits dsim_model.

Public Member Functions
	sun_sensor (dsim_model_setup *setup)
	Constructor.
void	initialization_complete ()
	Finish initialization.
void	initialize_data ()
	Initialize outlets and output variables.
void	pre_calculate ()
	Computation done prior to numerical integration. More...

Protected Attributes
dsim_variable	parent_quaternion_dsim
	Parent quaternion.
dsim_variable	solarFlux_dsim
	Solar flux outlet (ECI frame)
Outputs
dsim_variable	q_body_to_sensor_dsim
	Quaternion from the body to the sensor frame.
dsim_variable	azimuth_dsim
	Azimuth in the sensor frame.
dsim_variable	elevation_dsim
	Elevation in the sensor frame.
dsim_variable	sun_presence_dsim
	Sun presence.

Detailed Description

A geometric sun sensor model.

The model has an outlet for the solar flux vector. This model is strictly geometric; there is no noise applied. The output includes the azimuth and elevation of the sun vector and a flag indicating if the sun is present or not. The only parameter defining the sensor is the quaternion from the body frame to the sensor frame.

This model should be the child of the spacecraft model. The spacecraft quaternion is used in the coordinate transformations.

Member Function Documentation

pre_calculate()

void sun_sensor::pre_calculate

(

)

Computation done prior to numerical integration.

Update the sun presence flag and if the sun is present, compute the azimuth and elevation in the sensor frame.

References azimuth_dsim, elevation_dsim, parent_quaternion_dsim, q_body_to_sensor_dsim, solarFlux_dsim, and sun_presence_dsim.

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The documentation for this class was generated from the following files:

• sun_sensor.h
• sun_sensor.cc