A method is presented to optimize the orientation of directional sensors and instruments in a vehicle body-fixed frame. Directional dependence is included by creating a uniformly distributed set of directions in the body-fixed frame and formulating the objective as a function of these directions. The method is demonstrated by application to photodiodes for sun sensing, for which the covariance of the sun vector estimate is derived as a function of the photodiode configuration. The measured sun vector angular accuracy is then minimized as a function of the configuration, which enables the most accurate sun sensing with the given hardware. This technique maximizes subsystem performance and provides a design method to replace traditional, iterative design approaches to sensor placement.
Optimization of Directional Sensor Orientation with Application to Sun Sensing
Journal of Guidance, Control, and Dynamics ; 37 , 3 ; 828-837
2014-03-11
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Optimization of Directional Sensor Orientation with Application to Sun Sensing
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