文中提出了避免残差灵敏度矩阵存储的新方法，以及对量测估计进行局部修正的方法。
A new method of how to avoid the storage of the residue sensitivity matrix and of how to make local correction of measurement estimates are discussed in this paper.
把系统全局的和局部的预测模型的输出与实际输出比较，根据残差就得出相应的诊断结果。
The diagnosis strategy based on model is proposed, which realized fault diagnosis in terms of the errors of real-time measured signal and the outputs of the global and local diagnosis model.
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