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Quantized control using differential encoding
Author(s) -
Fischer Thomas R.,
Tinnin D. Joy
Publication year - 1984
Publication title -
optimal control applications and methods
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 44
eISSN - 1099-1514
pISSN - 0143-2087
DOI - 10.1002/oca.4660050106
Subject(s) - quantization (signal processing) , differential coding , vector quantization , encoding (memory) , control theory (sociology) , differential (mechanical device) , algorithm , computer science , pulse code modulation , generalization , mathematics , control (management) , decoding methods , artificial intelligence , engineering , telecommunications , mathematical analysis , transmission (telecommunications) , aerospace engineering
Abstract A vector generalization of differential pulse code modulation is used to provide quantization of control and measurements in a closed‐loop control system. Algorithms are developed for the adaptive quantizer and predictor. Explicit expressions are derived for the quantization and estimation errors resulting from the differential encoding. Simulation results are presented which demonstrate that even for very low bit rates the quantized control performance is very close to the performance of the unquantized optimal control solution.