中文摘要：

在测量噪声条件下,研究基于扩张状态观测器（ESO）的参数辨识方法和实际应用.结合仿真与实验,分析测量噪声对ESO观测状态输出的影响.为了提高实际应用中的辨识效果,通过引入积分型滤波器对观测状态中的噪声进行抑制.所提出方法可以很好地处理非均匀周期采样数据,适用于不规则采样系统的参数辨识.最后,在一类参数可调实验系统上构造两类实际对象,通过实验验证所提出辨识方法的有效性和实用性.

英文摘要：

Under the condition of noise measurement, a method of parameter identification based on the extended state observer（ESO） is discussed as well as its application. The influences of measured noise to the states of ESO are analyzed by simulations and experiments. To improve the identification results in the practical systems, an integral filter is introduced to suppress the noise with low contamination to the observed state. This method can well handle the non-uniformly periodically sampled data, and can be applied to identify parameters of irregular sampling system. Finally, two kinds of practical processes are realized in an adjustable experiment system, and the effectiveness of the proposed method is validated via two experiments.