清除电视机重影的适配器

• 作 者: 贾原铭
• 出 处: 电力技术
• 发表日期: 1982年06期
• 关键词: 适配器 电波 重影 重象 反射波 清除系统 定向性 铁塔 调谐器 哪种

在电视机上安装使用适配器,可去掉重像,东芝称为重象清除系统。由建筑物、高山、铁塔反射的电视电波,混入电视台直接输入的电波而产生重像的现象,已成为电视机接收的一大障碍,防止和减轻重像的研究,迄今已进行了种种试验。例如;利用天线定向性调整去掉重像的方法已广泛实行。这些方法不论对哪种方向的重像都能适应,但对来自多方向的反射波输入,效果较差,迫切需要研究新的技术。

Toshiba, known as a ghost remover, can remove ghosting by installing it on a television using an adapter. The phenomenon of ghosting generated by the television waves reflected by buildings, mountains and towers, and the direct input of radio waves mixed with television stations has become a major obstacle to the reception of television sets to prevent and mitigate the ghosting. So far, various tests have been conducted. For example; the use of antenna directivity adjustment to remove ghosting has been widely practiced. These methods can adapt to any direction of ghosting, but the input from multiple directions of reflected waves is not effective, so it is urgent to study new technologies.