A high-accuracy timing method for photographic tracking satellite. Animprovement in the SBG timing system.
This new timing method is based on the concept not to look for directly the start or stop signal of the plate carriage, but to collect all of the time-displacement informations concerning the movement of the plate carriage during tracking exposure processes, so that the corresponding tracking time and the timing accuracy can be well determined through a microcomputer.
Scientia Sinica Series Mathematical Physical Technical Sciences
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