Experimental study of object’s nonlinear radar cross section in baseband pulse mode
DOI: 10.21293/1818-0442-2023-26-4-13-18
Abstract: Quantitative information on the nonlinear scattering properties of probed objects at the impacts with signals close to baseband is presented, that will allow to make the requirements on transmitters and receivers of nonlinear baseband pulse radars. A prototype of a nonlinear baseband pulse radar using laboratory instruments has been developed. In the aperture of the antenna, it creates a pulsed field with an intensity of 35 W/m2 and at a front duration of 0,23 ns. The rings with a diameter of 6 сm made of copper wire with a cross section of 4 mm2 are used as sounding objects (a short-circuited ring as a linear object and a ring with the HSMS-8101 diode in its gap as a nonlinear object). The nonlinear radar cross section (NRCS) of a nonlinear object was 0,041 mm2, that fits into the typical range of NRCS for objects in a conventional (harmonic) nonlinear sounding.
Keywords: nonlinearity, radar, radar cross section, ultra-wideband sounding
Funding: The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. FWRM-2021-0015).
For citation:
Baykalova A. E., Semenov E. V. Experimental study of object’s nonlinear radar cross section in baseband pulse mode. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2023, vol. 26, no. 4, pp. 13–18. DOI: 10.21293/1818-0442-2023-26-4-13-18
Authors and copyright holders:
- Baykalova A. E. , Institute of High Current Electronics Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia), Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
- Semenov E. V. , Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia), Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
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