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Distributed Identification With Input Design for Network Systems
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DOI：10.1109/TCNS.2025.3548243.png)
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摘要
En 中文
The distributed identification of network systems under local observation has recently become one of the research hot spots. Due to the unobservable influence of other subsystems and the noise, it is difficult for local subsystems to achieve convergent identification under local observations. This article proposes a distributed identification algorithm for local subsystems to identify their parameter matrices under local observation with a guarantee of convergence. We obtain the necessary and sufficient conditions for the convergence of local identification. We prove that by injecting an independent random signal to the local subsystem, which is easy to implement, using a simple least-squares method to identify local systems can achieve convergent identification for a certain probability. Meanwhile, we give the minimal level of variance of the injected signal that can still guarantee the convergence of the identification. Next, we add the designed input as a vector of Gaussian noises with decreasing variance to a known controller, proving that it can converge to the original controller. Simulations demonstrate the effectiveness of the proposed algorithms.
Keyword:
Network systems
Convergence
Vectors
Computational modeling
Accuracy
Distributed databases
Design methodology
Covariance matrices
Complexity theory
Training
Controller design
convergence
distributed identification
network systems
optimization
期刊
IF:
5
论文数:
1.7K
被引数:
5.8K
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Subspace identification of individual systems in a large-scale heterogeneous network大规模异构网络中单个系统的子空间识别.png)
AUTOMATICA
AUTOMATICAIF5.9
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分享收藏Least-squares identification of fir systems subject to noiseProceedings 7th International Conference on Signal Processing, 2004. Proceedings. ICSP '04. 2004.
Proceedings 7th International Conference on Signal Processing, 2004. Proceedings. ICSP '04. 2004.IF0
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