【摘要】 提出了一种求取全部特征值的方法，进而可以识别是否为病态系统。病态系统数字仿真的特点在于要想保持病态系统数值解的稳定性就必须采用很小的仿真步距，致使仿真总步数十分巨大，不仅增加了累积误差，而且增加了计算工作量。而用较大的仿真步距又会使来稳定的病态系统数值解不稳定，失去了数字仿真的意义。本文提出的逐级剥离特征值方法采用逐级更换数学模型进行数字仿真，解决了这一难题，是一种病态系统数字仿真的好方法。更多还原

【Abstract】 The paper describes a new method to obtain all characteristic roots of a control system and discern whether it is abnormal or not in spite of the roots are scattered .and hard to determine. The method mentioned abandons the characteristic roots simulating abnormal control system by changing the mathematical model step by step to solve the problem. It Proves to be an efficient method to simulate abnormal control systems.更多还原