| 摘要 |
PURPOSE:To eliminate the signal line wire harness of inter-components which are loaded by establishing the commands of inter-components which are loaded and the interface of telemetry signal lines by means of FM radio waves that are transmitted. CONSTITUTION:Command signals are transmitted and are impressed on FM receivers 10 which respective components 7 have from FM transmitters 11 by the FM radio waves 14 as digital control signals with respect to respective components 7. On the other hand, data in respective components 7 and respective parts of the satellite are digitized in A/D converters 12 which the components have. Next, data are impressed on the FM receiver 10 which a telemetry unit 6 has by the FM transmitters 11 by transmission of the FM radio waves 14. Next, data are modulated by a transmitter 4 and are transmitted to a ground station as PCM telemetry down link signals. As a result, the signal line wire harness is eliminated and the launching weight of the satellite can be reduced. |
