V.V. Sapozhnikov, Vl.V. Sapozhnikov, D.V. Efanov
Èlektron. model. 2017, 39(5):37-58
https://doi.org/10.15407/emodel.39.05.037
ABSTRACT
Features of the class of modified weighted codes with summation with a sequence of weight coefficients forming a natural series of numbers are described. It is established that the properties of error detection by modified codes are significantly influenced by the method of calculating the correction factor for the formation of the total value of the weight of single bits of the information vector. Theoretical results are confirmed by the results of experiments with a set of test combinational circuits LGSynth`89. It is established that by changing the rules for calculating the correction factor for code modification, it is possible to have influence on the structural redundancy of the concurrent error detection systems. The obtained results can be effective in organization of the check of combinational logic circuits and allow building self-checked structures with less hardware costs in comparison with duplication.
KEYWORDS
combinational circuit, concurrent error detection system, Berger code, modified weighted Berger code, error detection, structural redundancy.
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