摘要
SAR影像反演海面风场需要对反演模型进行迭代求解,难以满足近实时预报的需求。利用IDL并行计算技术在多核计算机实现SAR风场反演。基于IDL程序设计特点,分析IDL桥并行计算程序设计方法,根据SAR风场反演流程,提出基于IDL桥对象构建的风场反演并行计算算法,验证了其实用性。结果表明,基于IDL桥对象构建的并行计算算法提高了计算效率,为其他数据快速处理提供了解决方案。
The progress of sea surface wind field retrieval from SAR（Synthetic Aperture Radar）images contains iterative solution of the retrieval model, which is difficult to meet the demand for near real-time forecasting. IDL（Interactive Data Language）parallel computing technology in multi-core computers is used to implement it. The method of parallel com-puting programming based on IDL bridge according to IDL program design features is analyzed. It proposes a parallel computing algorithm of wind field retrieved from SAR images based on IDL bridge object according to retrieval process. Its practicability is verified. The results show that the proposed technique improves the computation efficiency which also provides a solution for other data processing.
出处
《计算机工程与应用》
CSCD
2014年第18期261-264,270,共5页
Computer Engineering and Applications
基金
杭州师范大学遥感与地球科学研究院开放基金(No.PDKF2012YG04)
关键词
交互式数据语言
并行计算
多核
风场反演
合成孔径雷达(SAR)影像
Interactive Data Language （IDL）
parallel computing
multi-core
wind field retrieval
Synthetic Aperture Radar（SAR） image
