Path: SC/Sensor
% Returns roll and pitch for a generic earth sensor.
The sensor frame assumes that z is normal to the focal plane.
The field "kQ" selects the quaternion from the state vector x. The
field "kR" selects the spacecraft position.
The outputs are angle about x (roll) and y (pitch) in the sensor frame.
If no inputs are given it will return the default data structure.
--------------------------------------------------------------------------
Form:
[y,valid] = MeasEarthSensor( x, d )
d = MeasEarthSensor
--------------------------------------------------------------------------
------
Inputs
------
x (:,:) State vector
d (1,1) Data structure
.kQ (1,4) Quaternion state
.kR (1,3) Position state
.qBToS (4,n) Body to earth sensor quaternion
.bias (2,n) Bias
.scale (2,n) Scale
.noise (2,n) 1 sigma noise
.fOV (1,1) Field of view
.quantization (1,1) Least significant bit
-------
Outputs
-------
y (n,1) Measurements in counts
valid (1,n) Data valid flag
--------------------------------------------------------------------------
AerospaceUtils: Coord/U2AzEl Common: Quaternion/QForm Math: Linear/Unit
Back to the SC Module page