卫星遥感探测上层大气风场的关键技术研究进展

RECENT PROGRESS OF THE KEY TECHNIQUE FOR ATMOSPHERIC WIND MEASUREMENT

对卫星遥感探测上层大气风场的原理作了简介,综述了近年来探测大气风场所使用的基于多普勒频移和广角迈克尔逊干涉仪的WINDII、SWIFT、MIMI、WAMI、PAMI、ERWIN、DYNAMO的关键技术,包括WINDII的步进技术、SWIFT的红外辐射探测、WAMI的镜子四分技术、MIMI的6视场探测技术、PAMI的偏振态探测技术及火星大气探测的DYNAMO等关键技术,将这7种仪器的技术指标作了对比。文中提供了某些技术指标的来源公式,如大气风场探测器的两视场延迟时间、CCD阵列对地探测精度等公式的计算结果与实际符合得很好,最后对这类仪器的发展方向作了预测。

Introducing the principle of remote sensing atmospheric wind field. Summarizing the instruments development recently of wide?angle Michelson interferometer for detecting atmospheric wind based on Doppler shift, which are WINDII, SWIFT, MIMI, WAMI, PAMI, ERWIN and DYNAMO. The key techniques of these instruments include WINDII' s stepped phase technique, SWIFT' s near infrared radiation detector, WAMI' s divided a mirror technique, MIMI' s 6 fields of view, PAMI' s polarizing states and the Mars' wind measurement instrument DYNAMO. The technique parameters of 7 instruments are contrastive on the appendix table. The formulas of delay time about two fields of view and the precision of atmospheric scanned distance of CCD array are given in this paper; the calculated result is answered for the fact. The direct of these instruments is forecasted in later.