An improved frequency shift method for ATI-SAR flat earth phase removal

doi:10.1007/s13131-019-1426-2

	An improved frequency shift method for ATI-SAR flat earth phase removal
	Zhang, Yubin 1,2; Zhang, Jie 1; Meng, Junmin 1; Fan, Chenqing 1
刊名	ACTA OCEANOLOGICA SINICA
	2019-08
卷号	38 期号:8 页码:94-100
关键词	flat earth phase ATI-SAR frequency shift orbital parameter
ISSN号	0253-505X
DOI	10.1007/s13131-019-1426-2
英文摘要	An improved frequency shift method is proposed to remove the flat earth phase in ATI-SAR ocean surface motion detection in this study. First, two conventional flat earth effect removal methods (i.e., the frequency shift method and the orbital parameter method) are introduced and compared. Then, two improvements to frequency shift method are suggested. In the first improvement, the phase diagram is divided into several sub-blocks to calculate the phase fringe frequency. In the second improvement, a function between the phase of land regions and position is fitted to correct the residual flat earth phase based on the phase of the land regions that tend toward zero in an along-track interferogram. It is found that the improved frequency shift method is greatly improved; and it agrees well with the orbital parameter method, and achieves similar accuracy.
资助项目	National Natural Science Foundation of China[61471136] ; National Natural Science Foundation of China[61501130]
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000478744600013
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24619]
专题	自然资源部第一海洋研究所
通讯作者	Fan, Chenqing
作者单位	1.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China 2.Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yubin,Zhang, Jie,Meng, Junmin,et al. An improved frequency shift method for ATI-SAR flat earth phase removal[J]. ACTA OCEANOLOGICA SINICA,2019,38(8):94-100.
APA	Zhang, Yubin,Zhang, Jie,Meng, Junmin,&Fan, Chenqing.(2019).An improved frequency shift method for ATI-SAR flat earth phase removal.ACTA OCEANOLOGICA SINICA,38(8),94-100.
MLA	Zhang, Yubin,et al."An improved frequency shift method for ATI-SAR flat earth phase removal".ACTA OCEANOLOGICA SINICA 38.8(2019):94-100.