计算机科学
反推
人工神经网络
计算
控制器(灌溉)
反向传播
径向基函数
梯度下降
可微函数
控制理论(社会学)
人工智能
自适应控制
算法
控制(管理)
数学
数学分析
农学
生物
作者
Ruichen Ming,Xiaoxiong Liu,Li Yu,Wei Huang,Weiguo Zhang
标识
DOI:10.1016/j.engappai.2023.107326
摘要
In this work, we investigated an online differential neural network search control algorithm using a backstepping method with a radial basis function (RBF) neural network (NN) framework. In this approach, we mainly focused on searching a neural network architecture with optimal control performance and optimal computation load by learning NN parameters among a finite number of RBF NNs with different architectures. The previous works on RBFNN and backstepping methods mainly considered the control performance of systems, and the computation load limitations of control computers were rarely considered. In this paper, we herein propose a differentiable RBF neural architecture search (DRNAS) method. First, we built a hypernetwork and constructed an appropriate optimization objective function with information of a tracking error and a computation load. This hypernetwork consists of different networks with weight parameters. Then, through backpropagation and based on the gradient descent method, we updated the parameters of the hypernetwork and determined the optimal RBF NN architecture in the search space. Finally, we performed simulations to verify the effectiveness of the proposed method, where we designed an RBF NN adaptive backstepping controller for aircraft pitch rate dynamics and used the DRNAS method to train the hypernetwork based on different mission scenarios. The simulation results verified that the proposed method can effectively balance the controller’s tracking capability with its computation load.
科研通智能强力驱动
Strongly Powered by AbleSci AI