In this paper, the method of cross power spectrum is used to simulate rotor bars breaking faults of induction motor, including continuous breaking and intermittent breaking of rotor bars.

利用互功率谱方法对异步电动机发生多根导条断裂故障进行了模拟仿真，包括连续断条和间歇断条故障。

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The continuous phase modulation has the constant amplitude and its phase is continuous, which make the signal has a very good power spectrum.

连续相位调制由于其具有恒定包络幅度且对任意的调制信息序列能保持信号的相位连续，从而能够有效的改进信号的频谱特性。

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The power system is considered as a dynamic system that performs continuous non linear variation under small amplitude, wide spectrum disturbance.

文中电力系统被看作一个在小幅度、广谱的随机扰动下不断作非线性波动的动态系统。

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