在高频响应下,音圈电机存在明显的迟滞现象,并且具有一种特殊的迟滞特性,即具有动态、非光滑和非单调的复杂迟滞特性。将具有动态、非光滑和非单调特性的SDH迟滞模型作为对输入信号的预处理与最小二乘支持向量机相结合,提出了高频响音圈电机复杂迟滞混合建模方法,该方法可实现复杂迟滞模型参数的自适应调整。实验结果表明,所提出的迟滞混合建模方法能有效地描述高频响音圈电机复杂迟滞动态、非光滑和非单调的特性,并且模型具有较高的精度。
In high-frequency response, hysteresis phenomenon for voice coil motor is a complex behavior of a dynamic, non-smooth and non-monotonic. The new modeling method for the complex hysteresis was pro- posed, in which the least squares supporting vector machine was integrated with the SDH hysteresis model by which input signals were processed. Parameters in the new modeling method can be adjusted adaptively. The experiment results show the effectiveness of proposed modeling method.