[1]朱延海.高精确度扫频信号源的实现[J].南京师范大学学报(工程技术版),2006,06(01):020-23.
　ZHU Yanhai.The Realization of the Precise Frequency Sweep Signal Source[J].Journal of Nanjing Normal University(Engineering and Technology),2006,06(01):020-23.
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高精确度扫频信号源的实现
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
06卷
期数:
2006年01期
页码:
020-23
栏目:
出版日期:
2006-03-30

文章信息/Info

Title:
The Realization of the Precise Frequency Sweep Signal Source
作者:
朱延海;
江苏警官学院公安科技系 江苏南京210012
Author(s):
ZHU Yanhai
Department of Forensic Science,Jiangsu Police Officer College,Nanjing 210012, China
关键词:
扫频信号源;  锁相;  压控振荡器
Keywords:
frequency sweep signal source;  phase lock;  VCO
分类号:
TM935.1
摘要:
介绍了扫频信号源是各类扫频仪和网络测试仪的关键,不同的应用场合有不同的侧重,对于使用广泛的宽带扫频信号源,采用混频的方法解决倍频程的问题,对扫频线性和频率稳定、频率精确方面加以控制.采用锁相技术实现合成扫频信号源在工程上的具体应用,宽带扫频信号源的设计采用多环控制,扫频和固频均采用锁相环路,环路中结合吞脉冲技术,扫频振荡环路解决扫频线性度问题,并综合考虑各环节在工程实践上的具体问题,在高速分频的处理上采用ECL电路,压控振荡器采用高速模拟器件,电源供电等环节均加以适当处理,以提高信号源的整体性能.
Abstract:
Frequency sweep signal source, which emphasizes on different aspects according to different situations, is the keystone of various sweepers and network test sets. As a result of octaves, widely - used broad band frequency sweep signal source always exp loitsmixing to p roduce output signals, which will achieve a better result if controlled well in such aspects as frequency sweep linearity, frequency stability and frequency p recision. At p resent, due to the lower stability and accuracy of domestic frequency sweep signal source, the technology of using phase lock to p roduce frequency sweep signal source has been app lied many times. In order to design broad band frequency sweep signal source, multiring is used, and frequency sweep and fixed sweep adop t phase lock loop circuit, while considering concrete p roblems in each step. ECL circuit is used during the treatment of high2speed fractional frequency, while VCO using high-rate analog device, and also with the treatment of power supp ly, hence the overall performance of source will be imp roved. With the imp rovement, the source can p rovide p recise input standard in some measurements on os cillators, amp lifiers, cables, standing wave, frequency spectrums, etc. , which will make the whole measurement p rocessmore accurate and credible.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 朱延海(19702) ,讲师,主要从事电子信息与计算机应用等方面的教学与研究. E-mail: zhuyanhai@jp i. gov. cn
更新日期/Last Update: 2013-04-29