射频自适应干扰抵消系统的分析与设计  

Analysis and Design of RF Adaptive Interference Cancellation System

作　　者：邹敏[1] 纪学军[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》2011年第4期39-41,共3页Radio Engineering

摘　　要：自适应干扰抵消系统对提高电子对抗装备性能有非常重要的意义。在对自适应抵消系统原理模型进行总体分析的基础上,提出了系统的射频实现方案并对方案的性能做了详细的分析。针对工程实现过程中的一些问题进行了讨论,并给出了一些解决方法。依据该方案在225~400 MHz的工作频段内设计完成了性能较好的自适应干扰抵消系统,系统窄带抵消比接近50 dB,抵消时间小于1 ms,并且在整个工作频段内性能稳定可靠。Adaptive interference cancellation system is highly significant for the improvement of EW equipment.The scheme for its RF realization is put forward based on the analysis of adaptive cancellation model and its performance is also examined.The problems in the project are discussed and the ways solving the problems are presented.Lastly,according to the scheme,the system is accomplished in the 225~400MHz frequency range.The interference cancellation ratio reaches 50dB,the cancellation time is shorter than 1ms,and the system has very good stability and reliability.

关 键 词：自适应 干扰抵消 抵消比 收发隔离 

分 类 号：TN911[电子电信—通信与信息系统]