Model for correcting the retransmitted signal in the calibration of synthetic aperture space radars

Аuthors

Titov K. I.^*, Shulzhenko A. V.^*, Gusev S. N.^**

Mlitary spaсe Aсademy named after A.F. Mozhaisky, St. Petersburg, Russia

*e-mail: vka@mil.ru
**e-mail: vka@mail.ru

Abstract

The paper presents the results of modeling the formation of virtual point objects by transponders for the calibration of spaceborne synthetic aperture radars. The causes of defocusing of their radar images are analyzed. Methods for correcting the retransmitted signal are proposed, which compensate for the differences arising in the phase and geometric structure of the holograms of real and virtual objects.

Keywords:

synthetic aperture radar; calibration of radar; repeater; radar image; model

References

1. Evseev V.I., Titov K.I., Kolachev I.O. Informatsiya i kosmos, 2023, no. 4, pp. 12–24. 
2. Ilyin, A.L., Titov K.I. Trudy Voenno-kosmicheskoi akademii imeni A.F. Mozhaiskogo, 2021, no. 680, pp. 136–140.
3. Molchanov A.S., Kolomoets V.A. Tsifrovye portrety tipovykh ob''ektov vozdushnoi razvedki [Digital portraits of typical aerial reconnaissance objects]. Мoscow, Izdatel'stvo “Pero”, 2025, 194 p.
4. Sakhno I.V., Ilyin A.L., Titov K.I., Shulzhenko A.V. Problemy voenno-prikladnoi geofiziki i kontrolya sostoyaniya prirodnoi sredy [Problems of military-applied geophysics and environmental control], St. Petersburg, 2012, pp. 491–549. Available at: https://www.mivlgu.ru/conf/armand2012/pdf/S4_16.pdf. 
5. Gusev S.N., Sakhno I.V., Khubbiev R.V. Trudy MAI: elektron. zhurnal, 2019, no. 104. Avialable at: https://trudymai.ru/published.php?ID=102169. 
6. Gusev S.N., Miklin D.V. Trudy MAI: elektron. zhurnal, 2020, no. 112. Avialable at: https://trudymai.ru/published.php?ID=116355.  DOI 10.34759/trd-2020-112-11. 
7. Zanin K.A. Trudy MAI: elektron. zhurnal, 2017, no. 96. Avialable at: https://trudymai.ru/published.php?ID=85931. 
8. Ilyin A.L., Shulzhenko A.V., Shulzhenko A.D. Vestnik NPO im. S.A. Lavochkina, 2022, no. 4, pp. 60–67.
9. Titov K.I., Shulzhenko A.V. Trudy MAI: elektron. zhurnal, 2024, no. 139. Avialable at: https://trudymai.ru/published.php?ID=183463. 
10. Ilyin A.L., Shulzhenko A.V., Shulzhenko A.D. Trudy Voenno-kosmicheskoi akad. im. A.F. Mozhaiskogo, 2019, no. 670, pp. 159–163.
11. Ilyin A.L., Titov K.I., Shulzhenko A.V. Trudy Voenno-kosmicheskoi akad. im. A.F. Mozhaiskogo, 2014, no. 645, pp. 113-116. 
12. Verba V.S., Neronskiy L.B., Osipov B.G., Turuk V.E. Radiolokatsionnye sistemy zemleobzora kosmicheskogo bazirovaniya [Space-based earth survey radar systems]. Мoscow, Radiotekhnika, 2010, 680 p.
13. Mukhtarov E.I., Petrov A.S. Trudy MAI: elektron. zhurnal, 2024, no. 135. Avialable at: https://trudymai.ru/published.php?ID=179690. 
14. Gusev S.N. Izvestiya Tul'skogo gosudarstvennogo universiteta. Tekhnicheskie nauki, 2017, no. 6, pp. 368–377.
15. Kondratenkov G.S. Radiovidenie. Radiolokatsionnye sistemy distantsionnogo zondirovaniya Zemli [Radio vision. Radar systems for remote sensing of the Earth]. Мoscow, Radiotekhnika, 2005, 368 p.
16. Al'rubei M.A. Trudy MAI: elektron. zhurnal, 2023, no. 130. Avialable at: https://trudymai.ru/published.php?ID=174612.  DOI 10.34759/trd-2023-130-15.
17. Sychev M.I., Osipov P.V.Trudy MAI: elektron. zhurnal, 2023, no. 129. Avialable at: https://trudymai.ru/published.php?ID=173031. DOI 10.34759/trd-2023-129-19.
18. Korolenko P.V., Ryzhikova Yu.V. Modelirovanie i obrabotka sluchainykh signalov i struktur [Modeling and processing of random signals and structures]. Мoscow, MGU im. M.V. Lomonosova, 2012, 67 p.
19. Cook Ch. E., Bernfeld M. Radar signals, London, Academic Press Inc, 1967, 531 p.
20. Jirousek M., Döring B.J., Looser P., Schwerdt M. Linearity measurements of an accurate transponder for calibrating future spaceborne SAR systems. Proc. of 9th European Conference on Synthetic Aperture Radar Conference EUSAR-2012, Nuremberg, Germany, 2012, pp. 67–70.

Download