Signal spectrum distortion for an extended target in a radar with a continuous frequency-modulated signal

Konstantin Yu. Gavrilov; Kirill V. Kamenski; Anatoly I. Kanaschenkov; Nadezhda S. Panyavina

Konstantin Yu. Gavrilov Moscow Aviation Institute (National Research University) Moscow, Russia
Kirill V. Kamenski Moscow Aviation Institute (National Research University), Moscow, Russia
Anatoly I. Kanaschenkov Moscow Aviation Institute (National Research University), Moscow, Russia
Nadezhda S. Panyavina Moscow Aviation Institute (National Research University), Moscow, Russia

Keywords: Extended target model, numerical calculations, radar, spectrum distortion.

Abstract

The problem of spectrum distortion in radar with a continuous frequency modulated signal (FMCW radar) is considered in the case of locating extended targets containing a large number of closely spaced reflection points. An extended target model is introduced for which a beat signal is analyzed based on its representation in the form of an amplitude-modulated oscillation. It is shown that the distortion of the spectrum occurs due to a certain relationship between the distances of the target points, the values of the carrier frequency and the deviation of the probe signal frequency. The results of numerical calculations for various values of the signal parameters and the long target model are given.

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Author Biographies

Konstantin Yu. Gavrilov, Moscow Aviation Institute (National Research University) Moscow, Russia

Doctor of Sciences, Deputy Head of Department, Moscow Aviation Institute (National Research University) Moscow, Russia

Kirill V. Kamenski, Moscow Aviation Institute (National Research University), Moscow, Russia

Postgraduate student, Moscow Aviation Institute (National Research University), Moscow, Russia

Anatoly I. Kanaschenkov, Moscow Aviation Institute (National Research University), Moscow, Russia

Doctor of Sciences, Professor, Head of Department, Moscow Aviation Institute (National Research University), Moscow, Russia

Nadezhda S. Panyavina, Moscow Aviation Institute (National Research University), Moscow, Russia

Postgraduate student, Moscow Aviation Institute (National Research University), Moscow, Russia

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