For the smallest wire, the reversal model is coherent rotation .
直径很小时，反转模式为一致反转；
Time domain synchronous averaging can reduce the signal not coherent to rotation frequency effectively, and extract the repetitive signals directly related to machine operation condition.
而时域同步平均可以有效衰减与回转频率无关的干扰，提取与工作状态直接相关的周期信号。
This method can be used to process both translation-blurred and rotation-blurred images; the latter are still difficult to process by coherent methods at present.
既可处理平动模糊图象，又可处理用目前相干光方法难以处理的转动模糊图象。
This method can be used to process both translation-blurred and rotation-blurred images; the latter are still difficult to process by coherent methods at present.
既可处理平动模糊图象，又可处理用目前相干光方法难以处理的转动模糊图象。
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