以上层大气中的气辉（极光）为被探测源，利用干涉成像光谱技术和电磁波的多普勒效应对上层大气风场进行测量，分析和计算了大气风场的速度和温度，并就被探测源和探测器之间的相对速度与其连线成任意角时的情形进行了讨论。采用计算机模拟，分析了大气风场的测量效果。

Based on the observation of natural airglow and auroral visible emission lines in the upper atmosphere as the explored source, we have surveyed the upper atmosphere wind field through interference imaging spectroscopy coupled with the Doppler effect of electrical and magnetic waves. The velocity and temperature of the upper atmospheric wind field are analyzed and studied. The survey theory and calculation formula of atmosphere wind field in all directions and multi-directions are presented when the relative velocity of the explored source to the detector and their linking line have an arbitrary angle. We also analyzed the effects of the measurement of the upper atmospheric wind field using computer simulation, and explained the reason why the auroral emission line is thought as Gaussian profile.

The mechanism of beam shearing splitting and principle of the interfering imaging of the self-developed onboard Polarization Interference Imaging Spectrometer (PIIS) were expounded in this paper. The throughput of PIIS is analyzed. The relation of the throughput with the angle of the polarized orientation of the polarizer to the ideal direction is derived. This Polarization Interference Imaging Spectrometer has the merit of simple structure, no moving parts, and high throughput. Because of its unique advantage of static, compact in size, wide field of view, it is applicable for the aviation, spaceflight, remote sensing, fieldwork or weak signal detection.

The influence of the orientations of both polarizer and analyzer on modulation depth of spatially distributed interferograms for static polarization interference imaging spectrometer (SPIIS) is analyzed. A generally, theoretical relationship to determine the modulation depth of a SPIIS is derived. The special cases of maximum modulation depth (V=1) and the minimum modulation depth (V=0) are examined. Our results will provide a theoretical and practical guide for studying, developing and engineering polarization interference imaging spectrometers.

This paper describes the design of an interference imaging spectrometer. A static Polarization Imaging Spectrometer (PIS) based on a single Savart polariscope has been developed. It produces the interferogram and target's image in the spatial domain which are recorded by using a two-dimensional (2D) CCD detector. Imaging lens localizes the interference fringes and target's image coincident with the plane of detector, thereby facilitating an extremely compact design. The spectrum of the input light is reconstructed through the Fourier-transform of the interferogram. The total optics is as small as 20