Without conscious intent and the synchronizing signal of short iterations it is hard to notice the difference between being on the path and off the path unless you stay on the path for a while.

如果不是有意识地打算这样做，也没有短期迭代的同步信号，那么除非你在这条路上呆了很久，否则就很难注意到是否走错了路。

youdao

UWB pulses are so short that the direct signal has come and gone before the reflected path arrives, so no cancellation takes place.

UWB脉冲如此短，以至于反射路径信号到达之前直接路径信号已经收到和送出。

youdao