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Design and evaluate a precision pointing control system for the spaceborne High-Resolution Imaging Spectrometer on NASA's Earth Observing System.

April 1, 1991IEEE Control Systems

Precision pointing control for an orbital Earth observing system

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Design and evaluate a precision pointing control system for the spaceborne High-Resolution Imaging Spectrometer on NASA's Earth Observing System.
Designed a digital state-space controller combining gimbal position and basebody rate sensors to achieve a 1 Hz position loop and a 7 Hz rate loop bandwidth.
Conducted dynamic simulations accounting for nonlinear mechanics, sensor noise, and structural flexibility with noncollocated sensors and actuators.
Achieved target pointing accuracy of better than 585 arcseconds peak-to-peak.
Suppressed pointing jitter to less than 2.65 arcseconds across a 33-millisecond integration period.

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Implication

Simulation study demonstrates high-precision pointing and low jitter in an orbital imaging spectrometer, indicating feasible high-resolution Earth observation.

Cite This Study

Robeck et al. (1991) studied this question.

synapsesocial.com/papers/6a0144cb10d6befb257786c5 https://doi.org/10.1109/37.75578

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Implication

Simulation study demonstrates high-precision pointing and low jitter in an orbital imaging spectrometer, indicating feasible high-resolution Earth observation.

Precision pointing control for an orbital Earth observing system

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Implication

Cite This Study

Precision pointing control for an orbital Earth observing system

Key Points

Discussion

Implication

Cite This Study

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