Human control strategies in pursuit tracking with a disturbance input
Human control strategies in pursuit tracking with a disturbance input
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具有干扰输入的追踪跟踪中的人类控制策略
DOI：
10.1109/cdc.2014.7039980
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
J. Cook
中科院分区：
文献类型：
--
作者：
Bo Yu;R. Gillespie;J. Freudenberg;J. Cook
只要正弦波的频率不太高，操作员就可以操纵积分器设备并以几乎单位振幅比和零相位滞后很好地手动跟踪单个正弦波。然而，不同频率的单个正弦信号的响应模式与中高频随机出现的正弦和信号的响应模式不同。对于中高频，跟踪正弦和比跟踪单个正弦波存在明显更大的相位滞后。这种现象表明，人类对可预测任务和不可预测任务采用不同的控制策略。在本文中，我们设计了实验和方法来识别人类操作员中的非参数反馈和前馈控制器，以进行手动跟踪，并显式显示正弦参考信号和干扰输入。我们的结果表明，反馈控制器类似于 McRuer 的“交叉模型”，并且如果参考信号是可预测的，前馈控制器会尝试反转人类操作员正在操纵的系统动态。
Human operators can manipulate an integrator plant and manually track a single sine wave very well with almost unity amplitude ratio and zero phase lag as long as the frequency of the sine wave is not too high. However, the pattern of responses across single sine signals of different frequencies does not resemble the pattern of response across random appearing sum-of-sines signals for moderate to high frequencies. There is a significantly larger phase lag in tracking a sum-of-sines than tracking a single sine wave for moderate to high frequencies. This phenomenon suggests that humans utilize different control strategies for predictable tasks than for unpredictable tasks. In this paper we designed experiments and methodologies to identify non-parametric feedback and feedforward controllers in human operators for manual tracking with an explicit display of the sinusoidal reference signals and a disturbance input. Our results show that the feedback controller resembles McRuer's “crossover model”, and the feedforward controller attempts to invert the system dynamics that the human operator is manipulating if the reference signal is predictable.