在电视屏幕上常常会出现重影,有时很严重,甚至干扰图象的正常收看。如果改变一下接收天线的形状和方位,屏幕上的重影也会跟着发生变化(有可能会消失,但也不一定)。有时无论怎样调节,重影始终存在,只是稍有改善。也有一种重影是在移动的,不必调整天线它会自行消失。那么这些重影是怎样产生的呢? 电视机通过接收天线收到电视台发射来的被电视信号调制的电磁波,再经过机内电路对电波信号处理后在屏幕上再现出发射的图象。实际上接收天线接收 Ghosting often appears on the television screen, sometimes so severe that it can even interfere with the normal viewing of the image. If you change the shape and orientation of the receiving antenna, the ghosting on the screen will change (it may go away, but not necessarily). Sometimes no matter how adjusted, ghosting always exists, only a slight improvement. There is also a ghosting is moving, it does not have to adjust the antenna it will disappear. So these ghosting is how to produce it? TV through the receiving antenna TV station transmitted by the television signal modulated by the electromagnetic wave, and then through the internal circuit signal processing circuit to reproduce the emitted image on the screen. The receiving antenna is actually receiving