Subspace based State space system identification (4sid) algorithms are new time domain methods for identifying dynamics models of mechanical structures.
子空间状态空间系统辨识(4sid)方法是近年来出现的一种用于辨识线性振动系统动态特性的时域技术。
By numeric experimentation, identification precision and efficiency of the two subspace methods is analyzed under different noise.
通过数值试验，分析了不同噪声水准下两种子空间的识别精度和效率。
By numeric experimentation, identification precision and efficiency of the two subspace methods is analyzed under different noise.
通过数值试验，分析了不同噪声水准下两种子空间的识别精度和效率。
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