The simple method for analysis of nonlinear frequency distortions in FMCW radar

Krzysztof Kulpa , Andrzej Wojtkiewicz , Marek Nałęcz , Jacek Misiurewicz

Abstract

The paper presents a simple method for the estimation of nonlinear frequency distortions of linear frequency modulated (LFM) signals used in FMCW radars. This method, derived from the polynomial model of a nonlinear LFM signal phase, is based on finding the maximum of the two-dimensional chirp-like transform of the IF signal obtained by mixing the transmitted LFM signal with its delayed copy. Using the suggested transform, we show the ability of the method to detect and classify signal distortions
Author Krzysztof Kulpa (FEIT / PE)
Krzysztof Kulpa,,
- The Institute of Electronic Systems
, Andrzej Wojtkiewicz (FEIT / PE)
Andrzej Wojtkiewicz,,
- The Institute of Electronic Systems
, Marek Nałęcz (FEIT / PE)
Marek Nałęcz,,
- The Institute of Electronic Systems
, Jacek Misiurewicz (FEIT / PE)
Jacek Misiurewicz,,
- The Institute of Electronic Systems
Pages235-238,vol.1
Book Proc. XIIIth International Conference on Microwaves, Radar and Wireless Communications: MIKON’2000, 2000
Keywords in EnglishChirp modulation, CW radar, Delay effects, FMCW radar, FM radar, frequency estimation, Frequency modulation, IF signal, linear frequency modulated signals, Nonlinear distortion, nonlinear frequency distortion estimation, parameter estimation, Phase estimation, polynomial model, polynomials, radar detection, radar signal processing, Signal analysis, signal detection, signal distortion classification, signal distortion detection, transforms, two-dimensional chirp-like transform
DOIDOI:10.1109/MIKON.2000.913915
Languageen angielski
Score (nominal)0
Publication indicators WoS Citations = 4; Scopus Citations = 12; GS Citations = 16.0
Citation count*16 (2020-09-12)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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