modified physical optics approximation for rcs calculation of electrically large objects with coated dielectric

نویسندگان

hossein mohammadzadeh

department‎ of electrical and computer engineering‎, ‎isfahan university of technology (iut)‎, ‎isfahan‎, ‎iran abolghasem zeidaabadi-nezhad1

department‎ of electrical and computer engineering‎, ‎isfahan university of technology (iut)‎, ‎isfahan‎, ‎iran zaker hossein firouzeh

department‎ of electrical and computer engineering‎, ‎isfahan university of technology (iut)‎, ‎isfahan‎, ‎iran

چکیده

the radar cross section of a target plays an important role in the detection of targets by radars‎. ‎this paper presents a new method to predict the bistatic and monostatic rcs of coated electrically large objects. ‎the bodies can be covered by lossy electric and/or magnetic radar absorbing materials (rams)‎. ‎these materials can be approximated by the fresnel reflection coefficients‎. ‎the proposed method uses modified physical optics (po) approximation to obtain the object scattered field‎. ‎one of the advantages is the use of stationary phase method (spm) to solve the po integral‎. this is because‎‎the spm reduces significantly the computation time required to solve this integral as compared to  rigorously numerical integration techniques‎. ‎simulationresults are presented to verify the accuracy and efficiency of the proposed method. the results are compared with commercial feko and cst software in order to show its superiority as far as the computation time is concerned.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Modified Physical Optics Approximation for RCS Calculation of Electrically Large Objects with Coated Dielectric

The Radar Cross Section of a target plays an important role in the detection of targets by radars‎. ‎This paper presents a new method to predict the bistatic and monostatic RCS of coated electrically large objects. ‎The bodies can be covered by lossy electric and/or magnetic Radar Absorbing Materials (RAMs)‎. ‎These materials can be approximated by the Fresnel reflection coefficients‎. ‎The pro...

متن کامل

Modified Physical Optics Approximation for RCS Calculation of Electrically Large Objects with Coated Dielectric

ARTICLE HISTORY: Received 19 November 2015 Revised 22 December 2015 Accepted 27 December 2015 The Radar Cross Section of a target plays an important role in the detection of targets by radars . This paper presents a new method to predict the bistatic and monostatic RCS of coated electrically large objects. The bodies can be covered by lossy electric and/or magnetic Radar Absorbing Materials (RA...

متن کامل

FAST FAR FIELD APPROXIMATION FOR CALCULATING THE RCS OF LARGE OBJECTS y

A fast far eld approximation (FAFFA) is developed to estimate RCS of conducting scatterers. This method accounts for the interaction between subscatterers in two ways depending on the electrical distance between the subscatterers. For subscatterers separated by large electrical distance, their interactions are computed in three stages: (1) Aggregation, which computes the total eld at a group ce...

متن کامل

implementation of rcs software calculator using physical optics theorem (rcspo)

radar cross section (rcs) calculation is an important issue of objects stealth and identification. it is necessary to design the rcs software because of the high cost of rcs measurements in practice. in this paper, designing of efficient software using physical optics theorem for radar cross section calculation of the complex perfect electric conductors or complex dielectric objects for high fr...

متن کامل

Physical optics modeling of 2D dielectric lenses.

We propose an advanced physical optics formulation for the accurate modeling of dielectric lenses used in quasi-optical systems of millimeter, submillimeter, and infrared wave applications. For comparison, we obtain an exact full-wave solution of a two-dimensional lens problem and use it as a benchmark for testing and validation of asymptotic models being considered.

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of electrical and computer engineering innovations

جلد ۳، شماره ۲، صفحات ۱۱۵-۱۲۲

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023