Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2022, Vol. 19, No. 1, pp. 9-24
Place of video spectral imaging among remote sensing methods
B.V. Shilin
1, 2 , A.Y. Kuznetsov
3
1 A.F. Mozhaisky Military Space Academy, Saint Petersburg, Russia
2 Saint Petersburg Scientific Research Center for Ecological Safety RAS, Saint Petersburg, Russia
3 ITMO University, Saint Petersburg, Russia
Accepted: 17.01.2022
DOI: 10.21046/2070-7401-2022-19-1-9-24
The long-term experience of a number of leading organizations in the development of field and aerial video spectral imagery as a fundamental and methodological basis of space imagery and the possibility of assessing the effectiveness of the latter is analyzed and summarized. Experts in the field of remote sensing are being familiarized with the capabilities of field and air (including in the complex “imitation” aerial photography with a video spectrometer for a small spacecraft) video spectral surveys using the specific example of 20-year joint work of some organizations. The block diagram of aerial and field video spectral surveys, optical diagram and technical characteristics of prototypes of ITMO university video spectrometers are presented. The results of the work of the Fregat and Burelom video spectrometers in field and aviation conditions are presented. The results of using video spectrometers on aircraft carriers and in the field in various conditions are presented in the form of a series of narrow-spectrum monochrome images of various background-target situations and spectra of outgoing radiation of surveyed objects by the example of solving problems of identifying early vegetation stress from pollution with heavy metals. The practical significance of field and laboratory spectroradiometric measurements in different ranges of the optical spectrum using modern foreign spectroradiometers is estimated. A comparison is made with the achievements abroad and in our country. Conclusions are drawn about the development of spectroradiometric research in our country.
Keywords: video spectrometer, hyperspectrometer, spectral characteristics, monochrome images, spectroradiometer
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