Subspace model identification (SMI) methods, a new class of black-box algorithms to setting up a linear state space model directly from input-output data, have drawn much research attention recently.

• 摘要子空间模型辨识方法(SMI)是一类新兴的直接估计线性状态空间模型的黑箱建模方法，近年来获得了广泛关注。