de Sousa C R, Hemerly E M, Galvao R H
Dept. of Syst. & Control, Instituto Tecnologico de Aeronautica, Sao Jose Dos Campos.
IEEE Trans Syst Man Cybern B Cybern. 2002;32(4):493-504. doi: 10.1109/TSMCB.2002.1018768.
This work improves recent results concerning the adaptive control of mobile robots via neural and wavelet networks, in the sense that the stability proof, based on the second method of Lyapunov, encompasses (1) unmodeled dynamics and disturbances in the robot model; (2) adaptation of all parameters in the wavelet networks; and (3) a flexible procedure for automatically adjusting the wavelet architecture. Prior knowledge of dynamic of the mobile robot and network training is not necessary because the controller learns the dynamics online. The wavelet network's parameters and structure are also adapted online. Simulation results are presented by using parameters of the Magellan mobile robot from IS Robotics, Inc.
这项工作改进了近期有关通过神经网络和小波网络对移动机器人进行自适应控制的成果,具体体现在基于李雅普诺夫第二法的稳定性证明涵盖了以下方面:(1) 机器人模型中的未建模动态和干扰;(2) 小波网络中所有参数的自适应;以及 (3) 自动调整小波架构的灵活程序。由于控制器在线学习动态,因此无需移动机器人动态和网络训练的先验知识。小波网络的参数和结构也在线自适应。利用IS Robotics公司麦哲伦移动机器人的参数给出了仿真结果。