Optimization of Multilayered Radar Absorbing Structures (RAS) using Nature Inspired Algorithm

Description

Stealth technology is a crucial pre-requisite in the combat zone, where swiftness, surprise and initiative are the decisive elements for survivability. The supreme goal here is to reduce the visibility of military vehicles by shaping, application of radar absorbing materials, passive cancellation, active cancellation etc. With respect to multilayered radar absorbing structures (RAS), this book presents an efficient algorithm based on particle swarm optimization (PSO), for the material selection as well as optimization of thickness of multilayered RAS models considering both normal as well as oblique incidence cases. It includes a thorough overview of the theoretical background required for the analysis of multilayered RAS as well as the step-by-step procedure for the implementation of PSO-based algorithm. The accuracy and computational efficiency of the indigenously developed code is also clearly established using relevant validations and case studies. FEATURES Provides step-by-step procedure for the implementation of particle swarm optimization (PSO) based algorithm in the context of multilayered radar absorbing structures (RAS) design Helps to understand the EM design, analysis and optimization of multilayered RAS Describes the theoretical background required for the analysis of multilayered RAS Illustrates in detail the theoretical formulation supported by intuitive ray diagrams and comprehensive flowcharts to implement the algorithm with ease Includes elaborate validations and case studies This book will serve as a valuable resource for students, researchers, scientists, and engineers involved in the electromagnetic design and development of multi-layered radar absorbing structures. Cover Half Title Title Page Copyright Page Dedication Table of Contents Preface Acknowledgment Authors Biography Introduction Chapter 1 Introduction 1.1 Methods for Reduction of Radar Cross Section 1.2 Significance of Multilayered Radar Absorbing Structures (RAS) and Design Challenges Chapter 2 EM Wave Propagation in Multilayered Radar Absorbing Structures (RAS) 2.1 Computation of Overall Reflection/Transmission Coefficients in Multilayered RAS for Normal Incidence 2.2 Computation of Overall Reflection/Transmission Coefficients in Multilayered RAS for Oblique Incidence 2.2.1 Transverse Electric (TE) Polarization 2.2.2 Transverse Magnetic (TM) Polarization Chapter 3 Application of Nature Inspired Algorithms for Optimization Problems 3.1 Nature Inspired Algorithms for Optimization of RAS 3.2 Overview of Particle Swarm Optimization 3.3 Key Terminology in PSO Algorithm 3.4 Description of Generalized PSO Algorithm Chapter 4 PSO-based Algorithm for the EM Design and Optimization of Multilayered RAS 4.1 Methodology of PSO for the Optimal Design of Multilayered RAS 4.2 Algorithm for the Optimization of Multilayered RAS Using PSO Chapter 5 Validations and Performance Evaluation 5.1 Validation of Developed Subroutine 5.2 Case Study for Performance Evaluation of Developed PSO-based Algorithm 5.3 Conclusion Appendix: Database of Materials Used for the Optimal Design of Multilayered RAS References Author Index Subject Index