邓忠新,徐彤,刘瑶,等.VHF雷达空域干涉法探测曲靖电离层E区场向不规则体精细结构[J].电波科学学报,2023,38(1):142-151.DOI:10.12265/j.cjors.2021242DENGZX,XUT,LIUY,etal.FinestructureofionosphericE-regionfield-alignedirregularitiesrevealedusingtheQujingVHFradarspatialinterferometry[J].Chinesejournalofradioscience,2023,38(1):142-151.(inChinese).DOI:10.12265/j.cjors.2021242VHF雷达空域干涉法探测曲靖电离层E区场向不规则体精细结构邓忠新*徐彤刘瑶朱梦言徐彬丁宗华许正文(中国电波传播研究所电波环境特性及模化技术重点实验室,青岛266107)摘要针对VHF相干散射雷达传统观测方式的探测能力局限,构建了空域干涉法探测实验系统,其具备对电离层场向不规则体(field-alignedirregularity,FAI)三维精细结构探测能力.结合曲靖E区FAI干涉探测实验数据,实现了对系统相位偏差校正及回波三维空间位置精确获取,得到了不规则体云团的三维精细结构以及漂移运动过程,包括FAI回波散射点的三维空间位置以及FAI云团的三维空间外尺度、漂移运动轨迹和漂移速度等.探测实例结果表明:其东西、南北和高度向分布范围分别为−35~20km、85~120km和95~130km,对应的三维外尺度分别为23.8km、7.6km和7.6km;东西向漂移速度要大于其他两个方向,并呈现出5~6min的准周期回波特征.关键词甚高频相干散射雷达;空域干涉探测;E区场向不规则体;精细结构中图分类号P352文献标志码A文章编号1005-0388(2023)01-0142-10DOI10.12265/j.cjors.2021242FinestructureofionosphericE-regionfield-alignedirregularitiesrevealedusingtheQujingVHFradarspatialinterferometryDENGZhongxin*XUTongLIUYaoZHUMengyanXUBinDINGZonghuaXUZhengwen(NationalKeyLaboratoryofElectromagneticEnvironment,ChinaResearchInstituteofRadiowavePropagation,Qingdao266107,China)AbstractAimingatthelimitationofdetectionabilityofVHFcoherentscatteringradarinroutinemode,adetectionsystembasedoninterferencemethodisconstructedtoformthedetectionabilityofthree-dimensionalfinestructureofionosphericEregionfield-alignedirregularity(FAI)inthiswork.BasedonEregionFAIechodataobtainedbyVHFradarinterferencedetectionexperimentcarriedoutatQujing,thephasedeviationofdetectionsystemiscalibratedandthethree-dimensionalfinestructureanddrift...