基于频率分离的自适应前馈控制在硬盘宽带振动抑制中的应用
Frequency Separation based Adaptive Feedforward Control for Rejecting Wideband Vibration with Application to Hard Disk Drives
摘要：
本文提出了一种基于频率分离的自适应前馈控制算法，该算法具有辨识对象和逐区补偿的能力。在该算法中，加速度计信号通过一系列均匀分布的带通滤波器滤波，产生一串频谱互斥的子带信号。在每个子带中，对应的子带信号作为前馈信号，并且仅需要识别该区域中的系统的频率响应，因此可以期望相当低的阶模型具有有效的补偿。从第一个区域开始，前馈控制参数与同一区域中的低阶对象模型同时学习，然后移动到下一个区域，直到执行所有区域。
英文摘要：
In this paper, a frequency separation based adaptive feedforward control algorithm is developed with the ability to identify the plant and do compensation region by region. In this algorithm, the accelerometer signal is filtered by a series of uniformly distributed bandpass filters to generate a bunch of subband signals which are mutually exclusive in spectrum. In each subband, the corresponding subband signal acts as the feedforward signal and only the frequency response of system in that region needs to be identified, thus a pretty low order model can be expected to have efficient compensation. Starting from the first region, the feedforward control parameters are learned simultaneously with the low order plant model in the same region and then moves to the next region until all the regions are performed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
