Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Analysis of Some Uncertain Factors in Spaceborne SAR Imaging and SAR Image

HUANG Shi-qi,LIU Dai-zhi(Sec.602,the Second Artillery Engineering Institute,Xi'an 710025,China)  
The uncertain factors of Synthetic Aperture Radar(SAR) imaging not only impact SAR imaging,but also obstruct the interpretation and application of SAR images.In order to improve the uncertainties,this paper makes a detail analysis and discussion about the uncertainties and influences in spaceborne SAR imaging and SAR image,brought by Doppler parameter estimations,range migrations,speckle noise and backscattering coefficients,from SAR imaging principles and processes.Furthermore,some corresponding improved methods are proposed for part uncertainty.Experiments were done with the raw data of ERS-2,and the experimental results show that the uncertainties may be improved as soon as possible.This is very significant for further studying SAR imaging and applications.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved