首先利用多维逆m序列作为激励输入信号，用实验法建立出空气传送部分的多变量离散状态空间模型。
Firstly, the paper models the multivariable discrete state-space model of the air transmission unit by the lab method, using multi-dimensional inverse m series as input stimulus signal.
离散量信号测试模块完成离散量信号和离散量输入卡的自动测试。
The discrete magnitude signal test module realized the auto test for discrete magnitude signal and discrete magnitude input card.
然后从故障检测的角度引入算子，定量考察连续时间未知输入信号和故障信号对离散时间残差信号的影响。
Then an operator is introduced from the viewpoint of fault detection to describe quantitatively the influence of the continuous-time unknown inputs and faults on the discrete-time residuals.
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