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18 October 1996 Single-board digital processing system design approach for the NEAR laser rangefinder instrument
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Abstract
The near earth asteroid rendezvous (NEAR) mission includes a laser ranging instrument which will be used to aid in the measurement of the physical properties of the asteroid Eros. The NEAR laser rangefinder (NLR) is comprised of a laser transmitter, receiver optics and electronics, and a digital control subsystem. The digital component is implemented in a single-board radiation-hardened architecture containing a microprocessor, a custom time-of-flight device, a 16-channel data acquisition system, and a MIL-STD-1553 command and telemetry interface to the spacecraft. This paper covers the digital subsystem design, and discusses approaches taken to maximize the integration of the digital elements, to compress the desired functions onto a single printed circuit board.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert C. Moore and Daniel E. Rodriguez "Single-board digital processing system design approach for the NEAR laser rangefinder instrument", Proc. SPIE 2811, Photonics for Space Environments IV, (18 October 1996); https://doi.org/10.1117/12.254036
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