基于信道化瞬时测频的数字干涉仪设计分析  

Digital interferometer's designning and analysis based on digital channelized IFM

作　　者：罗冰[1] 罗进川[1] 刘和周[1] 

机构地区：[1]中国电子科技集团公司38所,安徽合肥230031

出　　处：《信息通信》2014年第7期52-54,共3页Information & Communications

摘　　要：采用剩余定理设计多基线干涉仪，并通过一套系统的设计、仿真证明其有效性和准确性。简要介绍了其基本实现过程，并通过引入数字接收技术提高其工程实践指导意义。该干涉仪采用超外差结合超宽带数字接收技术实现，工作频段覆盖2～18GHz，数字中频带宽可达到400MHz；同时采用数字信道化技术，进行数字瞬时测频（IFM）辅助测向结果生成。The remainder theorem is used to design multi baseline interferometer,And through a set of system design and simu-lation prove the effectiveness and accuracy. Its basic implementation process are briefly introduced, and through the introduction of digital receiving technology to improve its engineering practice guiding significance . The interferometer adopts superhetero-dyne ultra wideband digital receiving technology implementation, 2-18 GHZ frequency coverage, digital intermediate fre-quency bandwidth can be up to 400 MHZ;Adopting digital channelized technology at the same time, digital instantaneous fre-quency measurement （IFM） auxiliary direction finding results generated.

关 键 词：测向 数字干涉仪 信道化IFM 

分 类 号：TN948.55[电子电信—信号与信息处理]