Computer Science
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lri..worku....v&link_type=abstract
In NASA. Goddard Space Flight Center, Eighth International Workshop on Laser Ranging Instrumentation 9 p (SEE N94-15552 03-19)
Computer Science
Control Systems Design, Electronic Control, Laser Range Finders, Satellite Tracking, Telescopes, Transputers, Microcomputers, Parallel Processing (Computers)
Scientific paper
The Modular Transportable Laser Ranging Systems (MTLRS-1 and MTLRS-2) have been designed in the early eighties and have been in operation very successfully since 1984. The original design of the electronic control system was based on the philosophy of parallel processing, but these ideas could at that time only be implemented to a very limited extent. This present system utilizes two MOTOROLA 6800 8-bit processors slaved to a HP A-600 micro-computer. These processors support the telescope tracking system and the data-acquisition/formatting, respectively. Nevertheless, the overall design still is largely hardware oriented. Because the system is now some nine years old, aging of components increases the risk of malfunctioning and some components or units are outdated and not available anymore. The control system for MTLRS is now being re-designed completely, based on the original philosophy of parallel processing, making use of contemporary advanced electronics and processor technology. The new design aims at the requirements for Satellite Laser Ranging (SLR) in the nineties, making use of the extensive operational experience obtained with the two transportable systems.
Beek Wiard
Offierski Jacek W.
Otten Klaus H.
Sperber Peter
Vanes C.
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