Determining inertial orientation of a spinning body with body-fixed sensors

David J. Hepner; Thomas E. Harkins

doi:10.1117/12.391651

7 July 2000 Determining inertial orientation of a spinning body with body-fixed sensors

David J. Hepner, Thomas E. Harkins

Proceedings Volume 4025, Acquisition, Tracking, and Pointing XIV; (2000) https://doi.org/10.1117/12.391651
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

A methodology for determining absolute inertial angular orientation of a spinning body is demonstrated utilizing independent angular measurements for two arbitrary body- fixed sensor systems. A particular application is denoted utilizing Army Research Laboratory Solar Likeness Indicating Transducers and magnetoresistive sensors which provide body- fixed, independent angular measurements with regard to their respective local fields. Knowledge of the local field orientations and a coordinate transformation provide the inertial orientation angles, commonly called psi and theta, useful for evaluation and development of advanced flight bodies and as a navigation aid for brilliant munitions. The device is called POINTER: Projectile Orientation In Navigation TERms for a spinning body containing optical and magnetic sensors. Typical sensor data and reduction processes are reviewed and alternative field measurements are discussed.

Citation Download Citation

David J. Hepner and Thomas E. Harkins "Determining inertial orientation of a spinning body with body-fixed sensors", Proc. SPIE 4025, Acquisition, Tracking, and Pointing XIV, (7 July 2000); https://doi.org/10.1117/12.391651

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