| 摘要 |
PURPOSE:To exactly executing synchronization of a star in a short time, by dividing an optical signal into two through a condensing device, processing them by a signal processing part through a CCD, also spectrally analyzing them by a spectroscope, and processing them by the signal processing part through the CCD. CONSTITUTION:An optical signal from an artificial satellite is divided into two by a condensing device 1. One light beam is inputted to a photodetecting device 2 consisting of a CCD, is processed by a signal processing part 3, and a signal showing a position of a start is sent to a signal processing part 7. The other light beam is spectrally analyzed by a spectroscope 4, is detected by a CCD 5, its output is inputted to a signal processing part 6, and a spectrum signal of a start is sent to the signal processing part 7. By the signal processing part 7, synchronization of a star is executed exactly in a short time from both the input signals, and also an attitude control signal is outputted. |
