Estimating radar cross-section of canonical targets in reverberation chamber

Besnier, Philippe; Sol, Jérôme; Méric, Stéphane

doi:10.1109/emceurope.2017.8094795

Cited by 16 publications

(18 citation statements)

References 4 publications

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“…This theory deals with mono-static RCS measurement in RC. It follows a former presentation in [10], [11] with some highlighted changes.…”

Section: Theory Of Rcs Measurements In Rcmentioning

confidence: 89%

“…Some co-authors of the present paper have proposed a novel technique providing an estimation of RCS patterns based on frequency stirring and extraction of the target's signature from complex-valued scattering parameters of a single antenna pointing towards the target [10]. This technique takes advantage of the diffuse field properties within the RC.…”

Section: Introductionmentioning

confidence: 99%

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Radar Cross Section Pattern Measurements in a Mode-Stirred Reverberation Chamber: Theory and Experiments

Reis

Sarrazin

Richalot

et al. 2021

IEEE Trans. Antennas Propagat.

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This paper deals with the ability to perform radar cross-section (RCS) pattern measurements within reverberation chambers (RCs). The characterization principle is based on the estimation of the back-scattered field from the target at a farfield distance and takes advantage of the diffuse field within the RC. A frequency sweep of scattering parameters is achieved in presence and absence of the target installed on a rotating mast and the pattern is retrieved from these measurements. This paper explains the underlying theory and discusses the impact of several parameters on the performances. This includes the effect of the stirrer rotation which enables to enhance the dynamic range of the measurements. Experiments in two different RCs show the relevance of the proposed approach for RCS extraction and confirm the theoretical analysis.

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“…This theory deals with mono-static RCS measurement in RC. It follows a former presentation in [10], [11] with some highlighted changes.…”

Section: Theory Of Rcs Measurements In Rcmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Radar Cross Section Pattern Measurements in a Mode-Stirred Reverberation Chamber: Theory and Experiments

Reis

Sarrazin

Richalot

et al. 2021

IEEE Trans. Antennas Propagat.

Self Cite

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show abstract

“…Hence, the scattering parameter ( # ) is measured by the VNA (once calibrated at the antenna's connector level) over a stirrer rotation (with a rotation step of 30°). It can be expressed as follows [5]:…”

Section: B Measurement In the Empty Reverberation Chambermentioning

confidence: 99%

“…However, the monostatic or bistatic RCS retrieval within an RC is not as obvious. Based on earlier works on antenna directivity pattern measurement [4], authors in [5] proposed a novel approach to retrieve the ballistic wave between an antenna and a scattering object within a diffuse environment such as an RC, which enables RCS pattern measurement. This method presents the advantages to avoid any Fourier transformations as well as to use a cheaper measurement setup compared to classical anechoic chamber measurement.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the RCS accuracy depends on the overall Signal-to-Noise Ratio (SNR). In [5], the mode stirrer is kept in a fixed position while in this paper, we suggest taking advantages of the stirring process to average the measurement over a stirrer rotation and thus lower the overall measurement noise. This paper is constructed as follows: Section II presents the measurement process details.…”

Section: Introductionmentioning

confidence: 99%

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Mode-Stirring Impact in Radar Cross Section Evaluation in Reverberation Chamber

Reis¹,

Sarrazin²,

Richalot³

et al. 2018

2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)

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This paper presents the evaluation of the Radar Cross Section (RCS) pattern of a rectangular metallic plate from Reverberation Chamber measurement. It is seen that the measured RCS strongly depends on the environment and especially on the stirrer position. An approach based on averaging the measurement over a stirrer rotation is presented and allows increasing the measurement accuracy when compared to simulated data.

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Methodology and Techniques for Highly-Precise Radar Cross Section Measurements at W-Band

Jarvis

McDaniel

2022

IEEE Access

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This paper explores the challenges of radar cross section (RCS) measurements at W-band and proposes several techniques to overcome these challenges to obtain an accurate RCS measurement. This paper combines S 11 measurements collected using traditional radio frequency (RF) hardware with post-processing algorithms to extract RCS values with a single antenna. Vector background subtraction and time-gating suppress unwanted reflections while increasing the system's dynamic range capability. Experiments are conducted at the University of Oklahoma's mm-Wave Laboratory with a Vector Network Analyzer (VNA) and frequency extender to evaluate the proposed measurement techniques. The setup is calibrated with a metal sphere, and the RCS of a smaller metal sphere and an arrangement of four spheres is extracted. The single sphere's RCS is measured with a 0.304 dBsm average error, and the distributed object under test (OUT) RCS is measured with a 1.60 dBsm average error from 80-90 GHz. Each OUT is placed on a 3D-printed pedestal, and the remainder of the test hardware is part of an existing mm-Wave antenna measurement configuration. The post-processing clutter cancellation techniques enable a flexible test configuration to isolate the OUT RCS without purchasing specialized hardware.

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Estimating radar cross-section of canonical targets in reverberation chamber

Cited by 16 publications

References 4 publications

Radar Cross Section Pattern Measurements in a Mode-Stirred Reverberation Chamber: Theory and Experiments

Radar Cross Section Pattern Measurements in a Mode-Stirred Reverberation Chamber: Theory and Experiments

Mode-Stirring Impact in Radar Cross Section Evaluation in Reverberation Chamber

Methodology and Techniques for Highly-Precise Radar Cross Section Measurements at W-Band

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