Analysis of effect of coherent and incoherent components on RCS of chaff cloud

Lee, Dong-Yeob; Kim, Jun-Seon; Seo, Dong-Wook

doi:10.5916/jamet.2022.46.3.128

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…The EC and GEC are methods for calculating the electromagnetic characteristics of the entire scattering body by replacing the chaff cloud formed by the dispersion of the chaff fibers with an effective medium [21]. Especially, the GEC can be applied to chaff clouds with arbitrary orientation distributions.…”

Section: Generalized Equivalent Conductor (Gec) Methodsmentioning

confidence: 99%

Modeling and Dynamic Radar Cross-Section Estimation of Chaff Clouds for Real-Time Simulation

et al. 2023

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Chaff is a passive jammer widely used to disrupt radar or radio-frequency sensors. A mass of chaff fibers dispersed in the air is commonly referred to as a chaff cloud. It is nearly impossible to numerically simulate in real-time the enormous amount of chaff fibers composing the chaff cloud. In this paper, we model the behavior of numerically estimated chaff clouds as probability density functions (PDFs) and apply approximation techniques to estimate the radar cross-section (RCS) of the chaff cloud in real time. To model the aerodynamics of the chaff cloud, we represented the combination of PDFs as functions of time and wind speed. The applied approximation techniques—vector radiative transfer and generalized equivalent conductor method—showed a computation time that cannot be achieved by low-frequency methods such as the method of moments or finite-difference time-domain. Moreover, the dynamic RCS results of the approximation techniques showed a similar trend to those of other studies simulating similar situations. The proposed scheme is effective for real-time chaff cloud simulation, and the modeled dynamics and estimated dynamic RCSs can be a standard baseline for developing new analysis methods for chaff clouds. In the future, the proposed scheme will extend to more chaff fibers and more diverse environmental parameters.

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Section: Generalized Equivalent Conductor (Gec) Methodsmentioning

confidence: 99%

Modeling and Dynamic Radar Cross-Section Estimation of Chaff Clouds for Real-Time Simulation

et al. 2023

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“…As a result, it can be concluded that minimizing the interval between bursts or dispensing multiple chaff simultaneously is more effective in creating a larger RCS before the fighter passes through the RRC. However, electromagnetic coupling and shielding of chaff limit the increase in RCS from dispensing chaff at very short intervals or multiple chaff bursts compared to a single chaff cartridge [7][8]. For this study, it is assumed that the chaff RCS remains constant regardless of the chaff dispense sequence.…”

Section: Methodology For Chaff Dispense Programmentioning

confidence: 99%

Development of a Chaff Dispense Program for Target Tracking Radar Deception

Choi

Park

Jie

et al. 2023

Proc. eng. technol. innov.

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This study aims to develop an appropriate chaff dispensing program to deceive the target tracking radar (TTR) effectively. Chaff is a countermeasure commonly used by fighter aircraft to deceive TTR. However, there has been a lack of methodology for calculating chaff dispense programs that take into account the specific characteristics of the fighter, chaff, and TTR. This study proposes a methodology that considers these variables to calculate chaff dispense programs and addresses this gap. The proposed method is demonstrated through TESS engagement, which shows its effectiveness in various engagement situations.

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Analysis of effect of coherent and incoherent components on RCS of chaff cloud

Cited by 2 publications

References 14 publications

Modeling and Dynamic Radar Cross-Section Estimation of Chaff Clouds for Real-Time Simulation

Modeling and Dynamic Radar Cross-Section Estimation of Chaff Clouds for Real-Time Simulation

Development of a Chaff Dispense Program for Target Tracking Radar Deception

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