根据结构系统可观性，分别给出了观测一般结构和重频结构的前若干阶目标模态所需要最少传感器数量的估计方法。
The minimum number of sensors for observing a normal structure and a structure with repeated frequencies is studied respectively based on dynamic system observability.
根据结构系统可观性，分别给出了观测一般结构和重频结构的前若干阶目标模态所需要最少传感器数量的估计方法。
The minimum number of sensors for observing a normal structure and a structure with repeated frequencies is studied respectively based on dynamic system observability.
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