天波超视距雷达中流星余迹干扰模型  

Meteor trail interference model in over-the-horizon radar

作　　者：魏旻[1] 李军[1] 龚耀寰[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《电波科学学报》2007年第3期390-394,409,共6页Chinese Journal of Radio Science

基　　金：国防科技重点实验室基金资助项目(51434030105DE0201)

摘　　要：已获得的实测数据表明,天波超视距雷达在3MHz-30MHz的工作频段内存在明显的流星余迹干扰。流星余迹干扰会对天波超视距雷达探测目标的距离和多普勒信息造成负面影响,严重时会影响到天波超视距雷达的正常工作。根据流星余迹的散射特性,结合天波超视距雷达的工作方式,建立了流星余迹干扰模型,为在天波超视距雷达中研究抑制流星余迹干扰技术提供了帮助。仿真结果与实测数据基本一致,验证了模型的有效性。The observed data indicate that the over-the-horizon radar （OTHR） working at 3MHz-30MHz band has a obvious meteor trail interference. The interference has bad effect on the range and the Doppler information of target that may lead to the OTHR not working normally. Based on the scatter feature of meteor trail, combined with OTHR working, the meteor trail interference model is built. This model can help to research the technique for suppressing the meteor trail interference. Simulation results are in agreement with real data, and verifies the validity of the model.

关 键 词：天波超视距雷达 流星余迹 流星余迹干扰模型 

分 类 号：TN959.7[电子电信—信号与信息处理]