The identification results have indicated that the proposed method is an effective tool for modal parameters identification of time-variant linear system.
实验结果和理论计算结果比较表明：该方法为参数时变线性系统的模态参数辨识提供一条新途径。
DC-DC switching converter is a time-variant and non-linear dynamic system, and it is difficult to analyze and design.
DC开关变换电路是一个时变的、非线性的动态系统，它的分析与设计一直是一个难题。
The channel model is a linear time variant system.
信道模型为一线性时变系统。
In this paper, it represents a new technique of designing state observers with the variable structure system method (VSS) for linear time-in-variant systems.
本文介绍了用变量结构系统法(VSS)设计线性状态观测器的新方法，它与传统状态观测器的设计方法不同。
They have superiority in the uncertain model and non-linear system and time variant system control, due mostly to their being independent of precise mathematical model.
对于模型未知的复杂非线性系统或是动态特性常变的控制对象，两者的不依赖精确数学模型的控制特性具有无可比拟的优势。
They have superiority in the uncertain model and non-linear system and time variant system control, due mostly to their being independent of precise mathematical model.
对于模型未知的复杂非线性系统或是动态特性常变的控制对象，两者的不依赖精确数学模型的控制特性具有无可比拟的优势。
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