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Estimation of the range resolution using signals with step frequency modulation

Keywords:

K.Y. Gavrilov -Dr.Sc. (Eng.), Director of Educational Research and Production Center (ERPC), Faculty of Flying Vehicles Radio Electronics, Moscow Aviation Institute (National Research Uneversity) MAI (NRU). E-mail: gvrk61@mail.ru Yu.V. Igonina - Design engineer, the Branch of JSC Sukhoi Company «Sukhoi Design Bureau» (Moscow). E-mail: lorja@mail.ru O.N. Linnikov - Ph. D. (Eng.), Director of Research and Production Center «Designingradar systems», Faculty of Flying Vehicles Radio Electronics, Moscow Aviation Institute (National Research Uneversity) MAI (NRU). E-mail: olinmai@yandex.ru N.S. Panyavina - Head of the Department of Reliability and Testing, CNIRTI named after academician Berg (Moscow). E-mail: n.reznichenko@gmail.com


The properties and the method of signal processing with a stepped frequency modulation (SFM) relating to the form of ultra-wideband signals. The main attention is paid to the determination of the potential range resolution that can be achieved when using SFM signal. For this purpose, the analysis of the autocorrelation function signal. For this purpose, the analysis of the autocorrelation function signal. It is shown that the optimal correlation reception SFM signal can be realized by performing the quadrature phase detection operations, inverse discrete transform Fourier and computation module. We obtain estimates of the actual range resolution during the field experiment with the layout of the radar SFM signal.For the goals used of point reflectors in the form of metal plates.Resolution estimation derived from the Rayleigh criterion according to the values of the response functions. The actual resolution was about 10% worse than the potential.
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May 29, 2020

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