我国首次微波散射计机载试验数据分析

微波散射计是目前能有效获得全球海面风场的唯一遥感手段,我国也开展了这方面的研究工作,1999年,我国自行研制的微波散射计原型样机做了首次机载飞行试验。文中介绍了此次试验的基本情况,对试验数据进行了分析并和常规观测资料进行了比对。通过分析和比对,我们得出结论,这台仪器测量海面风向性能是十分出色的,我们提取海面风的算法也是高性能的。但是,由于仪器测量的归一化后向散射系数未作绝对定标,因此,尚不能获得海面风速。

Data Analysis of the First Airborne Experient of Microwave Scatterometer in Our Country

The microwave scatterometer is at present the only remote sensing method which can effectively obtain the global sea surface wind field,the research work in this aspect has also developed in Our country.In 1999 the microwave scatterometer prototype independently developed by Our country has performed for the first time the aircraft-borne performance flight.This experimental basic situation is presented In the article,the analysis of the tentative data has carried on and has rightly compared with the general observation data.Through the analysis and compare,we withdraw the conclusion that the performance of surveying sea surface wind of this instrument is extremely splendid.We withdraw the algorithm of the sea surface wind direction also is the high performance,but because the naturalisation backscattering coefficient that the instrument surveys has not been calibrated absolutely,thereby the sea surface wind speed still could't be obtained.