Abstract
This paper deals with a recursive filtering problem for a class of discrete time-varying nonlinear networked systems with the encoding-decoding mechanism. The linear fitting method is introduced to handle the nonlinearity. An encoding-decoding mechanism is constructed to describe the data transmission process in wireless communication networks (WCNs). To be specific, the measurement outputs are mapped by a quantizer to unique codewords for transmission in WCNs. Then, the codewords are decoded by the decoder to recover the measurement outputs which are sent to the filter. The processing/encoding delay and network delay have been considered. Firstly, on the premise that the upper bound of the filtering error covariance is minimum, the appropriate filtering gain is calculated. Then, the mean square exponential boundedness of the filtering error is analyzed. Finally, two simulation examples are presented to verify the effectiveness of the proposed algorithm.
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Acknowledgements
This work was supported in part by National Natural Science Foundation of China (Grant Nos. U21A2019, 61873058, 62103095), Hainan Province Science and Technology Special Fund (Grant No. ZDYF2022SHFZ105), Natural Science Foundation of Heilongjiang Province of China (Grant No. LH2021F005), and Alexander von Humboldt Foundation of Germany.
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Jiang, B., Dong, H., Gao, Z. et al. Linear-fitting-based recursive filtering for nonlinear systems under encoding-decoding mechanism. Sci. China Inf. Sci. 67, 152203 (2024). https://doi.org/10.1007/s11432-023-3905-1
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DOI: https://doi.org/10.1007/s11432-023-3905-1