基于韋布爾模型的合成孔徑雷達(dá)數(shù)據(jù)飽和校正方法研究
Study on the Correction Method for Saturated Data of SAR Based on Weibull Model
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摘要: 以瑞利模型為例研究了基于功率補(bǔ)償?shù)暮铣煽讖嚼走_(dá)(SAR)模數(shù)轉(zhuǎn)換器(ADC)飽和校正方法,并把該方法推廣到了韋布爾模型,分析了韋布爾飽和校正方法對(duì)實(shí)際數(shù)據(jù)的適用情況,證明了校正的有效性。Abstract: Taking Rayleigh model as an example, this paper studies a correction method for Synthetic Aperture Radar (SAR) analog-to-digital converter saturation based on power compensation and extends it to Weibull model. Then it analyzes the applicability of the Weibull model correction method and verifies it by the Radarsat SAR data.
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張澄波.綜合孔徑雷達(dá)原理、系統(tǒng)分析與應(yīng)用.北京:科學(xué)出版社,1989:456-457.[2]Laur H, Meadows P J, Sanchez J I, Dyer E. ERS-1 SAR radiometric calibration. Proceedings of the CEOS SAR Calibration Workshop, ESTEC, Noordwijk, The Netherlands,ESA Publication WPP-048, September 1993:257 - 281.[3]Shimada M. Radiometric correction of saturated SAR data[J].IEEE Trans. on Geosci. and Remote Sensing.1999, 37(1):467-[4]Laur H. ERS-1 SAR calibration: Derivation of backscattering coefficient sigma-nought in ERS-1.SAR. PRI Products. ESA/ESRIN Technical report, Issue 1, October 1992:16-25.[5]Sekine M, Mao Y. Weibull Radar Clutter, London: Peter Pergrinus Ltd., December 1990, chapters 1-2. -
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