利用GPS反射信号遥感Michael飓风海面风场研究  

Remote Sensing of Sea Surface Wind of Hurricane Michael by GPS Reflected Signals

作　　者：周兆明[1] 符养[2] 严卫[3] 薛震刚 

机构地区：[1]75100部队89分队 [2]北京大学物理学院 [3]解放军理工大学气象学院 [4]北京应用气象研究所

出　　处：《武汉大学学报（信息科学版）》2006年第11期991-994,共4页Geomatics and Information Science of Wuhan University

摘　　要：对GPS反射信号的功率波形以及GPS信号在海面的散射区域进行了阐述,并对海面风场反演的原理和方法作了具体的介绍。处理了NASA在Michael飓风中机载实验的数据,反演得到的风速精度为2 m/s左右,从而验证了通过GPS反射信号反演海面风场在理论和实践上的可行性。The propagating geometry and the waveform of the GPS reflected signals were expatiated in detail. Furthermore, the principle and the method of retrieving ocean surface wind were presented. In order to test the feasibility of retrieving, the experiment data obtained by NASA in hurricane Michael was used. The result shows that the estimated retrieval accuracy of wind speed is about 2 m/s.

关 键 词：GPS反射信号 散射区域 海面风场反演 

分 类 号：P228.42[天文地球—大地测量学与测量工程] P237.9[天文地球—测绘科学与技术]