控制理論,尤其是穩定性理論中,穩定性判據是用來判斷系統穩定的條件。有許多常見的穩定性判據:

穩定性也可通過根軌跡分析確定。

雖然穩定性的概念是一般的,但通過下面幾個較窄的定義也可以評估穩定性:

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