华中科技大学学报（自然科学版）Issue(9)：55-58,4.DOI:10.13245/j.hust.150911
基于EMD的高频地波雷达抑制射频干扰研究
Study on radio-frequency interferences suppression in high frequency ground wave radar based on EMD
摘要
Abstract
A new method of radio‐frequency interference suppression was proposed .The method de‐termined the interference position through the short time Fourier transform (STFT) and removed ra‐dio frequency interference to meet certain conditions in frequency domain by the application of empiri‐cal mode decomposition (EMD) algorithm .Suppression of interference was achieved and the useful signal to the biggest extent was retained .Analysis of measured data shows that this method is effec‐tive to suppress the radio‐frequency interference (RFI) suppression without losing of useful signal , which is able to meet the real‐time processing of the high frequency ground wave (HFGW) radar sys‐tem .关键词
高频地波雷达/射频干扰/短时傅里叶变换/经验模态分解算法/有用信号/实测数据Key words
high frequency ground wave radar/radio-frequency interferences/short time Fourier transform/empirical mode decomposition/useful signal/measured data分类
信息技术与安全科学引用本文复制引用
陈泽宗,谢飞,易盛,赵晨..基于EMD的高频地波雷达抑制射频干扰研究[J].华中科技大学学报（自然科学版）,2015,(9):55-58,4.基金项目
国家自然科学基金资助项目（41376182）；海洋公益性行业科研专项基金资助项目（201205032）；湖北省科技支撑计划资助项目（2014BEC057）；国家海洋局数字海洋科学技术重点实验室2014年度开放基金资助项目（KLD0201401）；中央高校基本科研业务费专项资金资助项目（2042014kf0028）． （）
