【摘要】 根据星载合成孔径雷达(SAR)的成像机理,建立了浅海水下地形的数学物理模型,提出了利用该模型进行水下地形计算的数值方法。利用该模型和方法对大坡度水下地形进行数值模拟,分析了大坡度水下地形的地形坡度与SAR探测程度的关系,发现在水下地形坡度较大的情况下,SAR可测量水深达100～200m。通过对曾文溪附近海域水下地形的数值模拟,证明了SAR对大坡度水下地形的探测深度。更多还原

【Abstract】 A simulation model for the radar backscattering cross section of the sea surface was developed based on the synthetic aperture radar (SAR) imaging mechanism of sea bottom topography. With this model, steep slope bottom topography was simulated. The results show that the maximum depth of measurement can be 100～200 meters if the slope of bottom topography is steep enough. This is in agreement with the SAR observation of the Zengwenxi bottom topography in Taiwan.更多还原