D.G. Okhapkin1, S.V. Elizarov2

1,2 PJSC «Radiofizika» (Moscow, Russia)

1 den.okhapkin@yandex.ru; 2 else044@gmail.com

Using radar absorbing materials is an important modern practice to reduce the radar visibility of objects. It is also important to confirm scattering properties and radar visibility of objects, covered with radar absorbing materials, using practical methods.

Methods using SFCW radars make it possible to build radar portraits depending on the viewing angle on the object, which makes it possible to evaluate the radar visibility of objects in various angular directions.

This article demonstrates the effect of a radar absorbing coating on the radar visibility of a cone-shaped object, as a result of the analysis of radar portraits obtained by aperture synthesis using SFCW radar, at an experimental equipment assembled in a large anechoic chamber of PJSC "Radiofizika".

Okhapkin D.G., Elizarov S.V. Application of the method for obtaining radar portraits of objects by the aperture synthesis method
using the SFCW radar to evaluate the effect of a radar absorbing coating on the radar significance of a cone-shaped object. Radiotekhnika. 2022. V. 86. № 4. P. 37−41. DOI: https://doi.org/10.18127/j00338486-202204-05 (In Russian)

1. Elizarov S.V., Krivosheev Ju.V., Suserov Ju.A., Tihonova A.V. Rezul'taty modelirovanija i vosstanovlenija diagramm obratnogo rassejanija jetalonnyh ob’ektov, izmerennyh v zone Frenelja. Radiotehnika. 2018. № 10. S. 65-70 (In Russian).
2. Anyutin N.V., Titarenko A.V., Elizarov S.V. Justification of the conditions of reproducible measured characteristics of radio absorbing materials in free space. 2017 Radiation and Scattering of Electromagnetic Waves (RSEMW). 2017. P. 165-167.
3. Kuprjashkin I.F., Sokolik N.V. Modelirovanie dal'nostno-doplerovskih portretov mul'tikopterov, formiruemyh RLS s nepreryvnym chastotno-modulirovannym izlucheniem. Zhurnal radiojelektroniki [jelektronnyj zhurnal]. 2021. № 3 (In Russian).
4. Labunec L.V., Anishhenko N.N., Jarullin A.R. Matematicheskoe modelirovanie perehodnyh harakteristik 3D-ob’ektov v radiolokacionnoj sisteme blizhnego dejstvija. Radiotehnika i jelektronika. 2006. T. 51. № 3. S. 263-285 (In Russian).
5. Pu L., Zhang X., Shi J., Wei S., Li L., Tang X. Three Dimensional Image-Based Radar Cross Section Extrapolation via Planar Projective Transforms. In IEEE Access. 2019. V. 7. P. 138990-139000.
6. Chao G., Xiaofeng Y., Yang B. An Approach for Extrapolating Far Field Radar Cross-Section from Near Field Measurement. 2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber. Physical and Social Computing. 2013. P. 1604-1607.
7. Okhapkin D.G. A method for obtaining radar images in the near zone using the FMCW radar. Collection of reports VII International conference Engineering & Telecommunication (En&T). 2020. P. 54-55.
8. Ohapkin D.G., Badanin P.A., Elizarov S.V. Sposob poluchenija radiolokacionnyh portretov celej pri pomoshhi RLS s nepreryvnym LChM-signalom na dal'nosti do 10 m. Materialy XI Vseross. nauch.-tehnich. konf. V 2-h tomah. FGUP «VNIIFTRI». 2018. S. 138-141 (In Russian).
9. Elizarov S.V., Tobolev A.K. Metrological support of the antenna measurements in JSC «Radiofizika»: Overview: International Conference on Engineering and Telecommunication, 2014. IEEE Computer Society. 2014. P. 30-32.