【摘要】 提出了一种新型CATV信号多路解调器的设计方案 .它由硬件和软件两大部分组成 ,通过自带键盘或上位机可实现频道选择和信号调节 .可从一条CATV电缆输入的射频信号中同时不失真地解调出 16个电视频道的视频和音频信号 ,配上视频采集卡和相应软件 ,可实现在一台PC机上同时对 16个电视频道信号的实时监测 .更多还原

【Abstract】 The design scheme of a new CATV signal multiple demodulator is introduced. The demodulator has two main parts, hardware and software. It can perform channel selection and signal demodulating using it’s own keyboard or the PC connected. It can separate the radio signal imported by a CATV cable into video signals and audio signals of 16 TV channels without distortion. Cooperating with video capture cards and relevant software,it can real-time monitor the signals of 16 TV channels simultaneously in a PC.更多还原