IEEE Trans Neural Netw Learn Syst. 2018 Apr;29(4):832-844. doi: 10.1109/TNNLS.2017.2647819. Epub 2017 Jan 24.
Adaptive tracking control of mobile robots requires the ability to follow a trajectory generated by a moving target. The conventional analysis of adaptive tracking uses energy minimization to study the convergence and robustness of the tracking error when the mobile robot follows a desired trajectory. However, in the case that the moving target generates trajectories with uncertainties, a common Lyapunov-like function for energy minimization may be extremely difficult to determine. Here, to solve the adaptive tracking problem with uncertainties, we wish to implement an interneural computing scheme in the design of a mobile robot for behavior-based navigation. The behavior-based navigation adopts an adaptive plan of behavior patterns learning from the uncertainties of the environment. The characteristic feature of the interneural computing scheme is the use of neural path pruning with rewards and punishment interacting with the environment. On this basis, the mobile robot can be exploited to change its coupling weights in paths of neural connections systematically, which can then inhibit or enhance the effect of flow elimination in the dynamics of the evolutionary neural network. Such dynamical flow translation ultimately leads to robust sensory-to-motor transformations adapting to the uncertainties of the environment. A simulation result shows that the mobile robot with the interneural computing scheme can perform fault-tolerant behavior of tracking by maintaining suitable behavior patterns at high frequency levels.
移动机器人的自适应跟踪控制需要能够跟随移动目标生成的轨迹。自适应跟踪的传统分析使用能量最小化来研究移动机器人跟随期望轨迹时跟踪误差的收敛性和鲁棒性。然而,在移动目标生成具有不确定性的轨迹的情况下,用于能量最小化的常见类 Lyapunov 函数可能极难确定。在这里,为了解决具有不确定性的自适应跟踪问题,我们希望在移动机器人的设计中实现基于神经网络的计算方案,用于基于行为的导航。基于行为的导航采用自适应行为模式计划,从环境的不确定性中学习。基于神经网络的计算方案的特征是使用带有与环境相互作用的奖惩的神经路径修剪。在此基础上,移动机器人可以改变其神经连接路径中的耦合权重,从而抑制或增强进化神经网络动力学中流消除的效果。这种动态流转换最终导致能够适应环境不确定性的稳健感觉-运动转换。仿真结果表明,具有基于神经网络的计算方案的移动机器人可以通过在高频水平上保持适当的行为模式来执行容错跟踪行为。