Low Cost Spacecraft Computers: Oxymoron or Future Trend?
نویسنده
چکیده
Over the last few deeades, application of current terrestrial computer technology in embedded spacecraft control systems has been expensive and wrought with many technical challenges. These challenges have centered on overcoming the extreme environmental constraints (protons, neutrons, gamma radiation, cosmic rays, temperature, vibration, etc.) that often preclude direct use of commercial off-the-shelf computer technology. Reliability, fault tolerance and power have also greatly constrained the selection of spacecraft control system computers. More reeently, new constraints arc being felt, cost and mass in particular, that have again narrowed the degrees of frtzdom spacecraft designers once enjoyed.
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