首页 | 本学科首页   官方微博 | 高级检索  
     

一种用于卫星电视时间比对的秒脉冲信号提取器
引用本文:梁双有. 一种用于卫星电视时间比对的秒脉冲信号提取器[J]. 时间频率学报, 2007, 30(1): 9-13
作者姓名:梁双有
作者单位:中国科学院国家授时中心,陕西,西安,710600
摘    要:为了获得稳定、可靠的卫星电视时间比对数据,成功研制了以秒信号提取器为主要部件的新一代卫星电视时间解调器。介绍了秒脉冲信号提取器的设计原理,详细阐述了钳位电路、采样保持电路和数字延迟电路的设计思路。对采用新的解调器和采用旧的解调器的卫星电视秒信号监测系统所得到的比对数据进行了分析,结果表明新的电视时间解码器的性能得到明显提高。

关 键 词:卫星电视  秒脉冲  信号提取器  解调器
文章编号:1001-1544(2007)01-0009-05
修稿时间:2007-02-212007-05-29

A 1-PPS Signal Extractor Used for Satellite-TV Time Comparison
LIANG Shuang-you. A 1-PPS Signal Extractor Used for Satellite-TV Time Comparison[J]. Journal of Time and Frequency, 2007, 30(1): 9-13
Authors:LIANG Shuang-you
Abstract:In order to obtain stable and reliable satellite-TV time comparison data,a new-generation of demodulator,in which a signal extractor for the 1-PPS(1 pulse per second) of satellite-TV time signal is the main part,has been developed successfully.In this paper,the design principle for the 1-PPS extractor is introduced,and the design clues for the clamper,sampling-holding circuit and digital-delay circuit are expounded in detail.The time comparison data obtained with the satellite-TV time signal measure system equipped with the new demodulator and the data obtained with the measure system equipped with the old demodulator are analyzed,and the results indicate that the performance of the new demodulator is much better than that of the old one.
Keywords:satellite-TV  1-PPS(1 pulse per second)  signal extractor  demodulator
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号