基于高速ECL数字电路的宽带多模信号的产生和设计  

THE DESIGN AND GENERATION OF MULTI-MODE WIDEBAND SIGNALS BASED ON HIGH SPEED ECL DIGITAL CIRCUITS

作　　者：蔡英杰[1] 李衍忠[1] 向敬成[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子与信息学报》2001年第6期617-621,共5页Journal of Electronics & Information Technology

摘　　要：该文给出了一种基于高速ECL数字电路的宽带多模信号产生系统,并简要介绍了线性调频(LFM),非线性调频(NLFM)信号产生系统的设计方法。该文实现系统的时钟频率为280MHz,可输出带宽70MHz以下的多种时宽的LFM,NLFM信号。实际测试结果表明,该宽带信号产生系统输出的谐波与杂散均小于-55dB,完全可以满足工程应用的要求。In this paper, a multi-mode signal generation system based on high speed ECL digital circuits is introduced. The method to design LFM and NLFM signal systems is also discussed. The implemented system working at clock frequency of 280MHz can output LFM and NLFM signals with different time duration and frequency bands within 70MHz. The measurement results of the system show that its performances of harmonic and spurious signals less than-55dB. It can meet the needs of practical engineering applications.

关 键 词：线性调频 非线性调频 脉冲压缩 雷达 宽带多模信号 ECL数字电路 

分 类 号：TN79[电子电信—电路与系统]