Internal Wave Parameters Retrieval from SAR Image: Based on EMD Filter and Parameterized Buoyancy Frequency

摘要：

Synthetic Aperture Radar (SAR) is a most useful instrument of internal waves (IWs) observation and study for its high resolution and all-weather remote sensing capability. Generally by combining the IWs hydrodynamic model and SAR image of internal wave mechanism we can retrieve the wavelength, amplitude and phase speed of IWs from SAR image. The mostly used method for this retrieve is the two-layer KdV theory which uses a two density invariable ocean fluid layer to simulate the actually continues stratified ocean fluid profile. This approximation works well for most of the shallow water but sometimes it will cause a significant error especially when the ocean stratification is weak. We propose the retrieve method based on EMD filter and Parameterized Buoyancy Frequency for this condition.

关键词： SAR Parameterized Buoyancy Frequency Two-layer KdV Theory Empirical Mode Decomposition

作者: LI Fei CHONG Jinsong OUYANG Yue

作者单位: National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Chinese Academy of National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Chinese Academy of

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）