Quadrant-CCD star tracker

Mark Clampin; Samuel T. Durrance; Robert H. Barkhouser; David A. Golimowski; A. Wald; W. G. Fastie; Denis L. Heidtmann; Morley M. Blouke; James A. Westphal; James R. Janesick; James E. Gunn

doi:10.1117/12.19436

1 July 1990 Quadrant-CCD star tracker

Mark Clampin, Samuel T. Durrance, Robert H. Barkhouser, David A. Golimowski, A. Wald, W. G. Fastie, Denis L. Heidtmann, Morley M. Blouke, James A. Westphal, James R. Janesick, James E. Gunn

Author Affiliations +

Proceedings Volume 1242, Charge-Coupled Devices and Solid State Optical Sensors; (1990) https://doi.org/10.1117/12.19436
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

The characteristics of a quadrant-CCD designed for pointing and tracking are discussed with reference to its use in an adaptive optics program. The quadrant-CCD is used to correct stellar image motion proceeding from atmospheric turbulence by means of a system in which a sensor measures the image offset and sends data to a high-speed tip/tilt mirror. The design and control of the device are detailed, including four 100-micron-square pixels, the quadrant architecture, controller electronics, and data acquisition computer and interface. The transfer function is set forth in the x and y directions, and transfer curves are shown. A laboratory simulation of random image motion was conducted to evaluate the performance of the quadrant-CCD as an image motion sensor, and the experimental results are presented. The suitability of the quadrant-CCD for space-based pointing and tracking uses is demonstrated by this test and two earlier theoretical studies. Some future developments which improve performance capabilities are mentioned.

Citation Download Citation

Mark Clampin, Samuel T. Durrance, Robert H. Barkhouser, David A. Golimowski, A. Wald, W. G. Fastie, Denis L. Heidtmann, Morley M. Blouke, James A. Westphal, James R. Janesick, and James E. Gunn "Quadrant-CCD star tracker", Proc. SPIE 1242, Charge-Coupled Devices and Solid State Optical Sensors, (1 July 1990); https://doi.org/10.1117/12.19436

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