The proceedings contain 22 papers. The topics discussed include: SDN-based optimized controller deployment strategy for satellite network;multi-UAV enabled maritime relay and edge-computing service migration;a TDoA-ba...
ISBN:
(纸本)9798350374377
The proceedings contain 22 papers. The topics discussed include: SDN-based optimized controller deployment strategy for satellite network;multi-UAV enabled maritime relay and edge-computing service migration;a TDoA-based single-LED VLP system assisted by circular photodiodes array receiver;research on parabolic cores and high refractive index ring assisted fibers;FUFQ: a heterogeneous-based full-amplitude quantum simulator;design of network topology control algorithm for multi-agent systems;aerial reconfigurable intelligent surface-assisted secrecy energy-efficient communication based on deep reinforcement learning;conceptual design to achieve stable communication performance in OWC systems with dimming control;and an improved label propagation algorithm for undirected weighted networks.
The use of renewable energy has increased during the last several decades. The most popular renewable energy source is photovoltaic (PV) technology, which uses solar radiation to create electricity. However, a number ...
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In this paper, we focus on the problem of data sharing over a wireless computer network (i.e., a wireless grid). Given a set of available data, we present a distributed algorithm, which operates over a dynamically cha...
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ISBN:
(纸本)9781665467612
In this paper, we focus on the problem of data sharing over a wireless computer network (i.e., a wireless grid). Given a set of available data, we present a distributed algorithm, which operates over a dynamically changing network and allows each node to calculate the optimal allocation of data in a finite number of time steps. We show that our proposed algorithm (i) converges to the optimal solution in finite time with very high probability, and (ii) once the optimal solution is reached, each node is able to cease transmissions without needing knowledge of a global parameter such as the network diameter. Furthermore, our algorithm (i) operates exclusively with quantized values (i.e., each node processes and transmits quantized information), (ii) relies on event-driven updates, and (iii) calculates the optimal solution in the form of a quantized fraction which avoids errors due to quantization. Finally, we demonstrate the operation, performance, and potential advantages of our algorithm over random dynamic networks.
In this paper, we propose integrating a learning-based online estimation with a hybrid control system that combines Model Predictive control (MPC) and an Adaptive Proportional controller (APC). This integration aims t...
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作者:
Liu, BoyaShen, YanjieFeng, ShuaiBu, ChenTan, HaoAVIC
Aerodynamics Research Institute Aviation Key Laboratory of Science and Technology on Low Speed and High Reynolds Number Aerodynamic Research Harbin China
The innovative design of the typical nonlinear unsteady aerodynamics of the aircraft during flight is the research focus of researchers in related fields in the industry. The algorithm model based on deep learning cre...
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In this article, for a series of nonlinear dynamic systems, a novel neuroadaptive controller which base on dual-loop recursive fuzzy neural network (DRFNN) is designed. Different from the traditional fuzzy neural netw...
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Rolling bearings, as a rotating component, are of great importance to ensure the normal operation and smooth running of important equipment. Remaining useful life (RUL) prediction is a hot research topic in the engine...
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ISBN:
(纸本)9798350321050
Rolling bearings, as a rotating component, are of great importance to ensure the normal operation and smooth running of important equipment. Remaining useful life (RUL) prediction is a hot research topic in the engineering field, which is helpful to ensure the operational safety of system equipment and reduce maintenance cost. The topic of how to utilize the important feature information in the time-series data and the reasonable use of attention mechanism are addressed in this study with a CBAM-CNN-BiLSTM-based technique for estimating the remaining service life of rolling bearings. Firstly, multi-domain features of vibration signals are extracted from time domain, frequency domain and time-frequency domain, and the features are normalized to the maximum-minimum value. Then, a convolutional neural network incorporating a hybrid convolutional attention module is used to extract the important features;a bidirectional long- and short-term memory network is employed to obtain the before-and-after dependencies in the features. Next, the self-attention mechanism is introduced into the bidirectional long and short-term network to focus on more important deep features. Finally, the effectiveness of the method is verified by the XJTU-SY dataset. The comparative study shows that the proposed CBAM-CNN-BiLSTM model outperforms other state-of-the-art methods in RUL prediction and system prediction, with higher prediction accuracy and generalization performance.
To solve the routing holes in wireless sensor networks caused by high energy consumption of cluster head nodes and shortage of spectrum, a dynamic clustering based method for wireless sensor networknetworking control...
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Model predictive control (MPC) uses a model of the system as a proxy to obtain multi-step predictions of the state or output variables. Thus MPC performance significantly depends on the quality of system approximation...
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Model predictive control (MPC) uses a model of the system as a proxy to obtain multi-step predictions of the state or output variables. Thus MPC performance significantly depends on the quality of system approximation by the model. While a linear model provides a reasonable approximation of a nonlinear system over a small operating region and only requires online solution of a quadratic program (QP), the multi-step predictions can be grossly inadequate if the system trajectories cover a large operating range and the MPC performance may become unacceptable. Here, nonlinear models are necessary to provide accurate predictions. However, the online computation requires solution of a nonlinear program (NLP) instead of a QP. This trade-off between a linear and nonlinear system can be solved by use of multiple linear models, where the online optimization problem takes form of a QP but allows superior predictions than linear models. In this work, we explore the trade-off for a significantly nonlinear system namely, a continuous stirred tank reactor, by using a feed forward neural network (FFNN) as the nonlinear model for the multi-step predictions. It is seen that while the FFNN provides reasonable approximations the computation times to solve the online optimization problems are significantly higher. This trade-off motivates our future research directions of approximating the FFNN by a quasi-linear parameter varying system as a new approach to the trade-off.
Modern air combat is increasingly complex. In the face of manoeuvring target with high velocity, how to use the limited power and manoeuvrability of air-to-air missile to achieve effective interception is an urgent co...
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Modern air combat is increasingly complex. In the face of manoeuvring target with high velocity, how to use the limited power and manoeuvrability of air-to-air missile to achieve effective interception is an urgent consideration. To address the problems in predicting whether the missile can hit the target and the velocity when the missile hits the target, this paper adopts a dynamic performance evaluation model by building a classification neural network and a regression neural network. The offline computation is performed through the attack and defense confrontation simulations, and the model is trained according to the generated experimental dataset. Simulation results show that the classification network can effectively determine whether a missile can hit the target. Furthermore, the regression network can predict the residual velocity of the missile when it hits the target. The accuracy of the classification neural network can reach more than 96%. The coefficient of determination (R-2 score) of the velocity prediction network is 0.996727, and 99.3% of the predicted velocities have an error within +/- 20 m/s, meeting the precision requirement in actual combat.
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