| タイトル | A quadrant-CCD star tracker |
| 著者（英） | Durrance, S. T.; Wald, A.; Heidtmann, D. L.; Golimowski, D. A.; Blouke, Morley M.; Fastie, W. G.; Janesick, James R.; Westphal, James A.; Barkhouser, R.; Clampin, M. |
| 著者所属（英） | California Inst. of Tech.|Johns Hopkins Univ.|Tektronix, Inc.|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1990-01-01 |
| 言語 | eng |
| 内容記述 | 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. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 91A37546 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/348206 |
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