非线性系统的故障诊断是该领域的热点与难点问题。

The diagnosis in the nonlinear systems is the hot and difficult subject in this field.

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该法以电路的改进节点方程为基础，具有建立故障诊断方程容易，所建立的方程具有较低的非线性度及规则的雅可比矩阵的特点。

This method based on modified nodal approach is easy to set up the fault diagnosis equations and has lower degree of nonlinearity and regular Jacobi matrix form.

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讨论了一类含有状态和输入未知参变量的非线性系统的故障诊断问题。

The fault diagnosis problem for a class of nonlinear systems with unknown parameters in both states and inputs is discussed.

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