一种超短波背景信号模拟器设计  

Design of a VHF Background Signals Simulator

作　　者：解建勇[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2009年第4期62-64,共3页Radio Engineering

摘　　要：当今世界电磁环境异常复杂,不仅包括军用电台、雷达等信号,还包括民用广播、通信等信号,如何验证在复杂电磁环境中通信设备的性能,是关心的课题。介绍了一种超短波背景信号模拟器的设计方案,模拟日益复杂的电磁环境。对其中的关键技术和实现方式进行了论述,着重分析了数字频率合成器和跳频跳时控制器及其中的直接数字频率合成技术,讨论了变频器设计中频率组合干扰问题,给出了在工程中实用的设计方法。In the world today, electromagnetic environment is very complex, including not only military radio and radar signals, but also civilian radio communications signals. We are concerned about the issue how to verify the communications equipment performance in a complex electromagnetic environment. A solution for a VHF background signals simulator is presented, simulating the complicating electromagnetic environment. The key technology, and implementation method are discussed, with emphasis on the technology of digital frequency synthesizer, the TH/FH control and the DDS. Combined Interference of the transducer is analyzed. The design method for practical project is provided.

关 键 词：电磁环境 直接数字频率合成技术 GOLD码 组合干扰 

分 类 号：TN830.7[电子电信—信息与通信工程]