论文标题
基于频率分离的自适应前馈控制，用于拒绝使用硬盘驱动器的宽带振动
Frequency Separation based Adaptive Feedforward Control for Rejecting Wideband Vibration with Application to Hard Disk Drives
论文作者
论文摘要
在本文中，开发了基于频率分离的自适应馈电控制算法，具有识别植物并按区域进行补偿的能力。在此算法中，加速度计信号通过一系列均匀分布的带通滤波器过滤，以生成一堆在频谱中相互排斥的子带信号。在每个子带中，相应的子带信号充当前馈信号，并且只需要确定该区域中系统的频率响应，因此可以预期相当低的订单模型具有有效的补偿。从第一个区域开始，在同一区域中，与低阶植物模型同时学习前馈控制参数，然后移动到下一个区域，直到执行所有区域。
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.
