In some situations, the same narrowband signal can be reflected by surrounding objects onto two or more different paths so the reflected signals arrive at a receiver out of phase, sometimes virtually canceling each other out.
In some situations, the same narrowband signal can be reflected by surrounding objects onto two or more different paths so the reflected signals arrive at a receiver out of phase, sometimes virtually canceling each other out.
在某些情况下，相同的窄频讯号会因为附近物体的反射而产生两个到多个不同的路径，所以反射讯号不会同步抵达接收机，有时几乎还会彼此抵消。