| 直接加间接锁相调频应用于TV伴音调频 |
| |
| 引用本文： | 唐朝伟,杨士中.直接加间接锁相调频应用于TV伴音调频[J].电讯技术,1991,31(1):17-19. |
| |
| 作者姓名： | 唐朝伟 杨士中 |
| |
| 作者单位： | 重庆大学无线电系 博士研究生
(唐朝伟)，重庆大学无线电系 教授(杨士中) |
| |
| 摘 要： | 本文分析了锁相调频的原理,指出了直接锁相调频应用于TV伴音调频的缺陷。同时分析了直接加间接锁相调频应用于TV伴音调频的优点,即既可以克服伴音漂移现象,又可以扩展调制频率下限。笔者最后给出了具体设计实例和测试参数。
|
| 关 键 词： | TV伴音 调频 锁相 电路 调频器 |
Direct and indirect PLL FM and application in TV voice FM |
| |
| Doctor''s Degree Postgraduate Tang Chaowei,Professor Yang Shizhong Chongqing University.Direct and indirect PLL FM and application in TV voice FM[J].Telecommunication Engineering,1991,31(1):17-19. |
| |
| Authors: | Doctor's Degree Postgraduate Tang Chaowei Professor Yang Shizhong Chongqing University |
| |
| Affiliation: | Doctor's Degree Postgraduate Tang Chaowei;Professor Yang Shizhong Chongqing University |
| |
| Abstract: | This paper analyzes the theory of Phase locke loop frequency modulation(PLL FM) and points out the shortcoming of the direct PLL FM when it is applied inTV voice FM, as well as analyzes the excellences of the direct and indirect PLLFM when it is applied in TV voice FM, that is, it not only can overcome theshift of voice signal, but also can spread lower limit modulation frequency. Atlast, author in the paper gives a designing example and measured parameters. |
| |
| Keywords: | Circuits and Systems PLL |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《电讯技术》浏览原始摘要信息 |
|
点击此处可从《电讯技术》下载全文 |
