基于韦布尔模型的合成孔径雷达数据饱和校正方法研究
Study on the Correction Method for Saturated Data of SAR Based on Weibull Model
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摘要: 以瑞利模型为例研究了基于功率补偿的合成孔径雷达(SAR)模数转换器(ADC)饱和校正方法,并把该方法推广到了韦布尔模型,分析了韦布尔饱和校正方法对实际数据的适用情况,证明了校正的有效性。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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张澄波.综合孔径雷达原理、系统分析与应用.北京:科学出版社,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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