论文标题
频域的识别多室系统：提起的本地多项式建模方法
Frequency Domain Identification of Multirate Systems: A Lifted Local Polynomial Modeling Approach
论文作者
论文摘要
多段系统的频域表示对于多条系统和采样数据控制的控制器设计和性能评估至关重要。本文的目的是为频域中的多条系统开发一种时间效率的闭环标识方法。开发的方法利用局部多项式建模来实现LPTV系统的提升表示，该模型可以在单个识别实验中直接识别闭环多胎系统。与LTI识别技术不同，由于LPTV动力学忽略，开发的方法不会遭受偏差。在多个示例中证明了开发的方法，从而在频域中获得了准确且快速的识别。
Frequency-domain representations of multirate systems are essential for controller design and performance evaluation of multirate systems and sampled-data control. The aim of this paper is to develop a time-efficient closed-loop identification approach for multirate systems in the frequency-domain. The developed method utilizes local polynomial modeling for lifted representations of LPTV systems, which enables direct identification of closed-loop multirate systems in a single identification experiment. Unlike LTI identification techniques, the developed method does not suffer from bias due to ignored LPTV dynamics. The developed approach is demonstrated on a multirate example, resulting in accurate and fast identification in the frequency domain.
