A 2-D Space-variant Chirp Scaling Algorithm for GEO SAR
Konferenz: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
03.06.2014 - 05.06.2014 in Berlin, Germany
Tagungsband: EUSAR 2014
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Sun, Guangcai; Chen, Jianlai; Yang, Jun; Xing, Mengdao (National Key Laboratory of Radar Signal Processing, Xidian University, China)
Inhalt:
A space-variant chirp scaling algorithm (SV-CSA) based on the range cell migration (RCM) equalization and azimuth subband synthesis has been studied to process simulated geosynchronous synthetic aperture radar (GEOSAR) data. The acceptable order of terms in polynomials for the slant range models in the RCM correction and phase error compensation, division of subband, and suppression of grating lobes of the subbands were investigated. Qualitatively and quantitatively, the method was able to focus simulated GEO-SAR signals well.