论文部分内容阅读
电视图象受到干扰的来源主要有三个方面:一是电视台发射的信号中混进了干扰信号;二是传输通道中(天线、馈线、天线放大器)窜入了干扰信号;三是电视机本身产生的干扰信号。各种不同类型的干扰信号,对电视图象形成的干扰性质也不相同。现就电视图象常见的干扰列于下表,电视图象受干扰的类型和来
There are three main sources of TV image interference: one is the signal mixed by the TV station, and the other is the interference signal; the other is the transmission channel (antenna, feeder and antenna amplifier) Of the interference signal. Different kinds of interference signals have different interference properties on the formation of television images. The common disruptions to television images are listed in the following table, the types of television images disturbed and come