Overview

The original objectives of this project were to build a test system for the NASA 255/223 Reed/Solomon encoding/decoding chip set and circuit board. This test system was then to be interfaced with a convolutional system at MSFC to examine the performance of the concantinated codes. After considerable work, it was discovered that the convolutional system could not function as needed. This report documents the design, construction, and testing of the test apparatus for the R/S chip set. The approach taken was to verify the error correcting behavior of the chip set by injecting known error patterns onto data and observing the results. Error sequences were generated using pseudo-random number generator programs, with Poisson time distribution between errors and Gaussian burst lengths. Sample means, variances, and number of un-correctable errors were calculated for each data set before testing. Ingels, Frank and Fryer, John Unspecified Center APPLICATION SPECIFIC INTEGRATED CIRCUITS; CHIPS (ELECTRONICS); CIRCUIT BOARDS; CODERS; CODING; CONCATENATED CODES; DECODERS; DECODING; ORBITAL MANEUVERING VEHICLES; REED-SOLOMON CODES; X RAY ASTROPHYSICS FACILITY; POISSON DENSITY FUNCTIONS; RANDOM NUMBERS; SEQUENCING; TEMPORAL DISTRIBUTION...

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9781722939304

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