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CSI Computer System/Remote Interface Unit Acceptance Test Results
NASA Technical Memorandum 104218 (March 1992) reporting acceptance test results for the Control/Structures Interaction (CSI) Computer System (CCS) and Remote Interface Unit (RIU) installed at the Space Structures Research Laboratory, Langley Research Center. The RIU provides 16 analog input channels through a 12-bit A/D converter and 8 output channels through 12-bit D/A converters, with analog anti-aliasing filters and a DSP board for digital filtering; the CCS uses spaceflight-qualified 1750A CPU and array processor hardware communicating over a MIL-STD 1553B bus. Test results cover hardware acceptance, software/control computation verification, open- and closed-loop tests, digital filtering, and standalone RIU operation.
real-time control systemsanalog-to-digital conversiondigital signal processingstructural dynamics