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	Ionospheric Clutter Extraction in HFSWR Based on Range-Doppler Spectral Image Processing
	Zhang, Ling1; Li, Ming1; Niu, Jiong1; Ji, Yonggang2; IEEE
	2014
页码	615-618
英文摘要	The detection capability of the high frequency surface wave radar (HFSWR) is severely limited due to the strong interference from the sea/ground and the ionospheric clutter, etc. Since the ionospheric clutter occupies a lot of range and Doppler cells with strong echo energy in the range-Doppler (R-D) spectrum, the target is submerged in the clutter region, which seriously affects the target detection capability of HFSWR. In this paper, an ionospheric clutter region extraction method is proposed based on the morphological analysis of the ionospheric clutter region distribution characteristics in the R-D spectrum image. Furthermore, to overcome the weakening of the target echo strength induced by the ionospheric clutter, the peak detection method is applied to improve the target detection ability of HFSWR. Finally, the proposed method is validated by the field data of HFSWR, which shows that the new detection method can effectively identify the ionospheric clutter region on the R-D spectral image with higher target detection precision comparing with the traditional image processing method combining with the constant false alarm rate (CFAR) target detection results.
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Engineering ; Telecommunications
WOS记录号	WOS:000380404400163
内容类型	会议论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/5161]
专题	业务部门_海洋物理与遥感研究室
作者单位	1.Ocean Univ China, Coll Engn, Qingdao 266100, Shandong, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ling,Li, Ming,Niu, Jiong,et al. Ionospheric Clutter Extraction in HFSWR Based on Range-Doppler Spectral Image Processing[C]. 见:.

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