摘要
提出了返回散射电离图传播模式的自动识别方法.介绍的方法仅基于返回散射电离图本身,结合电离层传播机理,无须人工干预,自动识别出一幅返回散射电离图存在哪几个反射层(E层、Es层和F层)的回波,根据层数采用不同的算法提取各个层的回波前沿.最后,又提出了利用垂测和斜测电离图辅助判读返回散射电离图的方法,能够提高返回散射电离图模式识别和前沿提取的正确率,具有较好的应用前景.
Methods for auto-identification of propagation modes from backscatter ionograms are presented.The method first introduced is only based on a backscatter ionogram not requiring other sounding data.Through the mechanism of ionospheric propagation,the method can auto-identify what reflection layers（E layer,Es layer and F layer）exist in a backscatter ionogram without manual operation.And the leading edges for all existed layers are extracted with different algorithms.Finally,an interpretation method for a backscatter ionogram with the assistance of a vertical ionogram and an oblique ionogram is put forward.The method can improve the precision of mode identification and leading edge extraction in a backscatter ionogram and has a good prospect for application.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第1期188-194,共7页
Chinese Journal of Radio Science
基金
国家自然科学基金重点项目(61032011)
国防技术基础科研项目(H312013D003)
关键词
返回散射
电离图
反射层
识别
backscatter
ionogram
reflection layer
identification
