Journal
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume 69, Issue 4, Pages 1728-1740Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSI.2021.3134989
Keywords
Quantization (signal); Synchronization; Vehicle dynamics; Sun; Protocols; Information sharing; Upper bound; Synchronization control; dynamic quantization; networked systems; event-triggered communication
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Funding
- National Natural Science Foundation of China [61973078]
- Key Project of Natural Science Foundation of China [61833005]
- 333 Engineering Foundation of Jiangsu Province [BRA2019260]
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This paper focuses on the synchronization control issue of networked systems, proposing a dynamic quantizer and estimator to deal with imprecise information sharing in imperfect network environments. By utilizing an event-based communication scheme to control estimate errors, exact synchronization is achieved, with distributed design provided for improved feasibility. Practical synchronization results are derived and validated through numerical examples.
This paper focuses on the synchronization control issue of networked systems. Due to the imperfect network environment, continuous or precise transmission is impractical, and intermittent communication scheme under state quantization needs to be considered. First, an easy-to-implement dynamic quantizer, which possesses finite quantization level, is designed to deal with the imprecise information sharing. Next, based on the designed quantizer, a dynamic estimator is introduced to estimate the real-time state information and generate control inputs. An event-based communication scheme is utilized to ensure that the estimate error does not exceed a certain threshold. Then, detailed design of the dynamically quantized controller is given to achieve exact synchronization, and corresponding distributed design is also provided to improve the feasibility. Moreover, some results for practical synchronization are derived. Finally, the validity of our theoretical results is illustrated by two numerical examples.
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