| 适于电视广播的毫米波通信 |
| |
| 引用本文： | 樊勇,唐小宏,吴正德,殷世昌.适于电视广播的毫米波通信[J].电子科技大学学报(社会科学版),2001(5). |
| |
| 作者姓名： | 樊勇 唐小宏 吴正德 殷世昌 |
| |
| 作者单位： | 电子科技大学应用物理所 成都610054
(樊勇，唐小宏，吴正德)，电子科技大学应用物理所 成都610054(殷世昌) |
| |
| 基金项目： | 信息产业部预研基金资助项目 |
| |
| 摘 要： | 讨论了一种适于新闻报道、实况转播应用的新型毫米波图像传输技术。依据图像质量与图像信噪比之间的关系,对图像传输性能进行了理论计算,并采用低成本新技术完成了实验研究,同时对系统方案、系统中的关键技术等进行了分析,给出了毫米波振荡器、混频器、双工器和天线等毫米波元部件的电气技术指标。该系统成本低,使用方便、灵活,当图像传输质量为4.5级时,系统通信距离大于1 km。
|
| 关 键 词： | 毫米波 毫米波通信 彩色电视 实况转播 |
Mm-wave Communication Suited for TV BroadcastMm-wave Communication Suited for TV Broadcast |
| |
| Fan Yong,Tang Xiaohong,Wu Zhende,Yin Shichang.Mm-wave Communication Suited for TV BroadcastMm-wave Communication Suited for TV Broadcast[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2001(5). |
| |
| Authors: | Fan Yong Tang Xiaohong Wu Zhende Yin Shichang |
| |
| Abstract: | A Ka-band color-TV delivery technique is introduced, which is suited for news reports or live program. Based on the equation of image quality and its signal-to-noise ratio, the fading margin of system is calculated theoretically. System scheme and key technology are recommended. Using state-of-the-art technologies, the demonstrator with low cost isdeveloped, and its behavior is evaluated. Millimeter-wave components applied to this system are described, including oscillator, mixer, antenna and duplexer et al. This demonstrator is low cost, easy to install and convenient to use. The system communication distance exceeds 1 km with image quality of 4.5-class. |
| |
| Keywords: | mm-wave mm-wave communication color-TV live program |
| 本文献已被 CNKI 等数据库收录！ |
|
