For the smallest wire, the reversal model is coherentrotation .
直径很小时, 反转模式为一致反转;
2
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。
3
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.