The article discusses a periodic interference cancellation system based on adaptive filter theory, and introduces the system form and structure principle.

文中讨论了一种基于自适应滤波原理的周期性干扰对消系统，介绍了系统组成及结构原理。

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Aiming at how to prevent periodic interference, more papers have covered LMS adaptive filter, which needs to adjust many parameters and shows instability in pulse type interference.

针对怎样抑制周期性干扰，文献中报道较多的是LMS自适应滤波方法，但该方法需调整参数多，对脉冲型干扰表现出不稳定性。

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