Abstract

The Correlation Characteristics of Polarization Backscattering Matrix of Dense Chaff Clouds

Highlights

  • As an effective passive countermeasure, chaff clouds have been playing an important role in electronic warfare [1], scattering communications [2], [3] and other applications, for example, being used as composite materials [4]

  • Polarization characteristics play an important role in the jamming recognition and suppression in radar electronic warfare [15,16,17,18]

  • This paper focuses on the polarization correlation characteristics of dense chaff clouds with uniform orientation and location distributions in circular symmetry region

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Summary

Introduction

As an effective passive countermeasure, chaff (or dipoles) clouds have been playing an important role in electronic warfare [1], scattering communications [2], [3] and other applications, for example, being used as composite materials [4]. A method of equivalent conductor (EC) is presented to calculate RCS in paper [8] by considering the dense chaff cloud as a homogeneous material. The polarization characteristics of chaff clouds are much more focused on for their essentials in chaff jamming recognition and suppression. Polarization characteristics play an important role in the jamming recognition and suppression in radar electronic warfare [15,16,17,18]. The study of the polarization characteristics of the dense chaff clouds is necessary for the chaff jamming recognition and suppression. This paper focuses on the polarization correlation characteristics of dense chaff clouds with uniform orientation and location distributions in circular symmetry region. Through investigation in correlation characteristics of the polarization backscattering matrix of dense chaff clouds, meaningful conclusions are drown. The results of numerical computation using the method of moments (MoM) [19] and Pocklington integral equation [20] are given, and the numerical results are in agreement with the analytical conclusions given in this paper

The Sparse Chaff Clouds
The Analysis for Dense Chaff Clouds Based on MOM
Numerical Validations
Conclusions
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