NDLI: GO/PO and PTD With Virtual Divergence Factor for Fast Analysis of Scattering From Concave Complex Targets

Content Provider	IEEE Xplore Digital Library
Author	Wei-Feng Huang Zhiqin Zhao Ran Zhao Jin-Ye Wang Zaiping Nie Qing Huo Liu
Copyright Year	1963
Abstract	Due to simplicity, hybridization of geometrical optics (GO) and physical optics (PO) based on ray tracing has been widely used for fast scattering analyses. However, when targets of curved concavities are discretized by flat facets, the loss of divergence factor (DF) will degrade the simulation accuracy. To remedy this loss, a simple and efficient factor, entitled virtual divergence factor (VDF), is proposed to play the role of DF. To prove the validity of VDF and simulate the scattering of concave complex targets, a hybrid method of GO/PO and physical theory of diffraction (PTD) is elucidated. With VDF correction, several typical targets, including a S-shape cavity, are simulated by this hybrid method. In comparison to multilevel fast multipole algorithm (MLFMA) or measurements, the validaty of VDF is fully demonstrated by good agreements and the excellent performance relative to DF on canonical surfaces, where the great efficiency and flexibility of this hybrid method are also shown. Moreover, one interesting and important issue, the dependance of field convergence on the maximum number of ray reflections, is also investigated for the first time.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	2170
Ending Page	2179
Page Count	10
File Size	2020051
File Format	PDF
ISSN	0018926X
Volume Number	63
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ray tracing Scattering Electron tubes Accuracy Cavity resonators Computational modeling Missiles ray tracing Divergence factor kd-tree physical optics Divergence factor (DF) physical optics (PO)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Ray tracing with PO/PTD for RCS modeling of large complex objects

Closed-form PO-PTD solution for fast electromagnetic scattering prediction

GPU-Based Combination of GO and PO for Electromagnetic Scattering of Satellite

Kd-tree based fast facet visibility test in iterative physical optics

SBR-PO/PTD method for backward scattering of airplane model and application to ISAR image

Hybrid GRE-PO method for modeling scattering from electrically large targets

High Accuracy Scattering Center Modeling Based on PO and PTD

Ultrafast ray tracing for electromagnetics via kD-tree and BVH on GPU

A comparative study on the exit aperture in shooting and bouncing ray method

GO/PO and PTD With Virtual Divergence Factor for Fast Analysis of Scattering From Concave Complex Targets

Similar Documents

Ray tracing with PO/PTD for RCS modeling of large complex objects

Closed-form PO-PTD solution for fast electromagnetic scattering prediction

GPU-Based Combination of GO and PO for Electromagnetic Scattering of Satellite

Kd-tree based fast facet visibility test in iterative physical optics

SBR-PO/PTD method for backward scattering of airplane model and application to ISAR image

Hybrid GRE-PO method for modeling scattering from electrically large targets

High Accuracy Scattering Center Modeling Based on PO and PTD

Ultrafast ray tracing for electromagnetics via kD-tree and BVH on GPU

A comparative study on the exit aperture in shooting and bouncing ray method

GO/PO and PTD With Virtual Divergence Factor for Fast Analysis of Scattering From Concave Complex Targets