• Acta Photonica Sinica
  • Vol. 51, Issue 8, 0851516 (2022)
Yang XIAO1、1、1、1, Yutao FENG1、1, Zhenqing WEN1、1、1、1, and Di FU1、1、1、1
Author Affiliations
  • 11Key Laboratory of Spectral Imaging Technology,Xi'an Institute of Optics Precision Mechanic of Chinese Academy of Sciences,Xi'an 710119,China
  • 12University of Chinese Academy of Sciences,Beijing 100049,China
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    DOI: 10.3788/gzxb20225108.0851516 Cite this Article
    Yang XIAO, Yutao FENG, Zhenqing WEN, Di FU. Doppler Asymmetric Spatial Heterodyne Interferometry for Wind Measurement in Middle and Upper Atmosphere(Invited)[J]. Acta Photonica Sinica, 2022, 51(8): 0851516 Copy Citation Text show less

    Abstract

    Atmospheric wind field is an important parameter to understand the dynamics and thermodynamic characteristics of the Earth's atmospheric system, and it is the basic data for weather forecasting, space environment monitoring, and climatology research. Passive optical remote sensing based on Optical interferometer is the main technical means of wind field measurement in the middle and upper atmosphere. In the 1960s, foreign research institutions began to use optical interferometers to detect upper atmospheric wind fields. and carried out the experimental research on interferometer payload technology simultaneously, and successively developed a series of representative scientific instruments and satellite payloads based on the Fabry-Pérot interferometer and the Wide Angle Michelson interferometer. In 2006, the ENGLERT C R research team of the U.S. Naval Research Laboratory proposed a new planetary atmospheric wind detection technology, called Doppler Asymmetric Spatial Heterodyne wind measurement technology, this technology detects the Doppler frequency shift of the atmospheric airglow spectrum by inverting the phase of the interferogram, thereby realizing the detection of the atmospheric wind field. Compared with the Fabry-Perot interferometer and the Wide-Angle Michelson interferometer, the Doppler Asymmetric Spatial Heterodyne interferometer has the following advantages: 1)Two-beam equivalent thickness spatial modulation interference, which relaxes the requirements for the optical index of the element; 2) Interferometer does not need Step-by-step scanning; 3) Wind speed inversion is based on the Fourier transform relationship between interferogram and spectrogram, so it does not need extremely narrow bandwidth (<1 nm) filters to separate single-line spectra; 4)Synchronous calibration can be achieved, the standard spectral line of the calibration light source and the target spectral line of the detection source are simultaneously introduced into the interferometer system to monitor the state change of the interferometer in real time, therefore, the measurement accuracy can be further improved. After nearly two decades, a series of research results have been achieved in basic theory, interferometer design, instrument development technology, data processing and wind speed retrieval of Doppler Asymmetric Spatial Heterodyne Interferometer. In terms of theoretical research progress, domestic and foreign scholars have theoretically analyzed the factors that affect the accuracy of interferometer phase inversion; In order to expand the detection capability of the Doppler Asymmetric Spatial Heterodyne Interferometer, four structural design schemes are proposed by referring to the spectral expansion method of the wide-spectru Spatial Heterodyne Spectroscopy; A series of interferogram preprocessing methods are proposed to eliminate the errors of the original interferogram caused by various defects of optical components, photoelectric sensors and optical systems. Foreign scholars put forward a wind field profile inversion method named “peeling onions”. In terms of instrument research progress, since the Doppler Asymmetric Spatial Heterodyne Interferometer wind measurement technology was proposed in 2006, many international research institutions have carried out research on the development process of the core components of the interferometer, and successfully developed a variety of interferometer prototypes covering from visible light to long-wave infrared ,such as Michelson Interferometer for Global High-resolution Thermospheric Imaging (MIGHTI), Stratospheric Wind Interferometer for Transport studies- Doppler Asymmetric Spatial Heterodyne (SWIFT-DASH), and Redline DASH Demonstration Instrument (REDDI). Ground-based instruments and space-based payloads have also been developed to the stage of application and promotion. The main domestic research institute is the Xi'an Institute of Optics and Precision Mechanics of CAS, the institute focuses on the study of the interferometer thermal compensation method, the interferometer glass component design method, the interferometer component gluing and integration process, the interferometer support structure component design and integration process, and proposed a dual-band Doppler Asymmetric Spatial Heterodyne interferometer technology and a high-time-resolution ground-based Doppler Asymmetric Spatial Heterodyne interferometer technology, and developed a single-channel DASH principle prototype with oxygen atom 630 nm and oxygen molecule 867 nm airglow radiation as the target source.This paper reviews the domestic and foreign research progress of Doppler Asymmetric Spatial Heterodyne technology for atmospheric wind field detection, discusses its technical characteristics and application potential, and provides reference for the future development of atmospheric wind field passive optical remote sensing detection technology and mission planning in the field of atmospheric wind field detection in our country.
    Yang XIAO, Yutao FENG, Zhenqing WEN, Di FU. Doppler Asymmetric Spatial Heterodyne Interferometry for Wind Measurement in Middle and Upper Atmosphere(Invited)[J]. Acta Photonica Sinica, 2022, 51(8): 0851516
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