PMID- 33612275 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20211026 LR - 20211026 IS - 1879-2022 (Electronic) IS - 0019-0578 (Linking) VI - 118 DP - 2021 Dec TI - Fast real-time SDRE controllers using neural networks. PG - 133-143 LID - S0019-0578(21)00102-6 [pii] LID - 10.1016/j.isatra.2021.02.019 [doi] AB - This paper describes the implementation of fast state-dependent Riccati equation (SDRE) control algorithms through the use of shallow and deep artificial neural networks (ANN). Several ANNs are trained to replicate an SDRE controller developed for a satellite attitude dynamics simulator (SADS) to display the technique's efficacy. The neural controllers have reduced computational complexity compared with the original SDRE controller, allowing its execution at a significantly higher rate. One of the neural controllers was validated using the SADS in a practical experiment. The experimental results indicate that the training error is sufficiently small for the neural controller to perform equivalently to the original SDRE controller. CI - Copyright (c) 2021 ISA. Published by Elsevier Ltd. All rights reserved. FAU - da Costa, Romulo Fernandes AU - da Costa RF AD - Graduate Program in Electronic and Computer Engineering - Electronic Devices and Systems, Electronic Engineering Division, Aeronautics Institute of Technology (ITA), 50 Praca Marechal Eduardo Gomes, Sao Jose dos Campos, SP, 12228-900, Brazil. Electronic address: Elromulo2006@yahoo.com.br. FAU - Saotome, Osamu AU - Saotome O AD - Department of Applied Electronics, Electronic Engineering Division, Aeronautics Institute of Technology (ITA), 50 Praca Marechal Eduardo Gomes, Sao Jose dos Campos, SP, 12228-900, Brazil. Electronic address: osaotome@ele.ita.br. FAU - Rafikova, Elvira AU - Rafikova E AD - Engineering, Modeling and Applied Social Sciences Center, Federal University of ABC (UFABC), 5001 Av. dos Estados, Santo Andre - SP, 09210-580, Brazil. Electronic address: elvirarafikova@ufabc.edu.br. FAU - Machado, Renato AU - Machado R AD - Department of Telecommunications, Electronic Engineering Division, Aeronautics Institute of Technology (ITA), 50 Praca Marechal Eduardo Gomes, Sao Jose dos Campos, SP, 12228-900, Brazil. Electronic address: renatomachado@ieee.org. LA - eng PT - Journal Article DEP - 20210216 PL - United States TA - ISA Trans JT - ISA transactions JID - 0374750 SB - IM OTO - NOTNLM OT - Deep learning OT - Neural control OT - SDRE control OT - Satellite attitude control OT - Stacked denoising autoencoders COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2021/02/23 06:00 MHDA- 2021/02/23 06:01 CRDT- 2021/02/22 05:48 PHST- 2019/12/13 00:00 [received] PHST- 2021/01/22 00:00 [revised] PHST- 2021/02/09 00:00 [accepted] PHST- 2021/02/23 06:00 [pubmed] PHST- 2021/02/23 06:01 [medline] PHST- 2021/02/22 05:48 [entrez] AID - S0019-0578(21)00102-6 [pii] AID - 10.1016/j.isatra.2021.02.019 [doi] PST - ppublish SO - ISA Trans. 2021 Dec;118:133-143. doi: 10.1016/j.isatra.2021.02.019. Epub 2021 Feb 16.