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中文摘要：
针对时变非线性多输入多输出（MIMO）系统在线辨识较困难的问题，提出一种基于最小二乘支持向量机（LSSVM）的快速在线辨识方法。介绍了现有LSSVM增量式和在线式学习算法，并为它引入了一些加速实现策略，得到LSSVM快速在线式学习算法。将MIMO系统分解为多个多输入单输出（MISO）子系统，对每一个MISO利用一个LSSVM在线建模；这些LSSVM执行快速在线式学习算法。数字仿真显示该方法建模速度快，模型预测精度高。
英文摘要：
To tackle the difficulty in identifying time-varying nonlinear Multi-Input Multi-Output （MIMO） system online, a fast online system identification approach based on Least Squares Support Vector Machine （LSSVM） was proposed. The existing LSSVM incremental and online learning algorithms were introduced, and some speeding up implementing tactics were designed and adopted in the algorithm; consequently, a fast online LSSVM learning algorithm was obtained. MIMO system was decomposed into multiple Multi-Input Single-Output （MISO） subsystems, and each MISO was modeled online via a LSSVM. The numerical simulation shows the modeling method is faster and the obtained models provide accurate prediction.
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