频域自适应陷波器抑制罗兰C中窄带干扰技术  

Narrow-Band Interference Suppression Technique by Frequency-domain Adaptive Notch Filter in Loran-C

作　　者：孟庆萍[1] 周新力[2] 刘华芹[1] 

机构地区：[1]海军航空工程学院研究生管理大队,烟台264001 [2]海军航空工程学院电子信息工程系,烟台264001

出　　处：《舰船电子工程》2008年第2期52-55,164-165,共6页Ship Electronic Engineering

摘　　要：目前罗兰C接收机采用固定频率点的模拟陷波器抑制窄带干扰,针对固定频率点的模拟陷波器在抑制窄带干扰方面的缺陷,提出将频域自适应陷波器应用于罗兰C窄带干扰的抑制,克服了时域自适应陷波器收敛慢等缺点。通过仿真,此陷波器具有较好的抑制窄带干扰的能力。Current Loran-C receivers suppress the NBI by analog notch filter with fixed frequency. The paper uses the frequency-domain adaptive notch filter to suppress the NBI which aims at the limitation of current Loran-C receivers, which overcomes the shortcoming of slow convergence of the time-domain adaptive notch filter. It is shown by the results of simulation that the frequency-domain adaptive notch filter has a perfect effect on NBI.

关 键 词：罗兰C 窄带干扰 频域陷波器 

分 类 号：TN965.5[电子电信—信号与信息处理]