Improvement of setup calibration for radar cross section measurements

Valentin Ilie Mihai; Liliana Anchidin; Razvan Tamas; Ala Sharaiha

doi:10.1117/12.2323286

31 December 2018 Improvement of setup calibration for radar cross section measurements

Valentin Ilie Mihai, Liliana Anchidin, Razvan Tamas, Ala Sharaiha

Proceedings Volume 10977, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IX; 109772S (2018) https://doi.org/10.1117/12.2323286
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies IX, 2018, Constanta, Romania

Abstract

This paper aims to present a calibration optimization method for radar cross section measurement setup using time domain measurements. The proposed method requires a measurement of S₂₁ parameter of a metallic plate with a known RCS at 13 different distances. A post processing technique reveals the correlations between the distances of measurements and time domain representations of S₂₁ extracted parameter. Time-domain representation of S₂₁ also depends on the wave propagation time on the antenna (Vivaldi and log-periodic) feeding line which inserts a delay. Time domain perspective clearly provides propagation delay data on antennas which are almost undetectable in frequency field. The principles of this method are provided together with experimental and simulation validations. At a distance of 22cm between antennas, mutual coupling influence affects every measurement set and is being reduced in post processing. This method also provides the impulse response of the whole measurement setup.

Citation Download Citation

Valentin Ilie Mihai, Liliana Anchidin, Razvan Tamas, and Ala Sharaiha "Improvement of setup calibration for radar cross section measurements", Proc. SPIE 10977, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IX, 109772S (31 December 2018); https://doi.org/10.1117/12.2323286

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KEYWORDS

Antennas

Calibration

Radar

Distance measurement

Error analysis

Near field

Telecommunications

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