نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناس ارشد مخابرات از دانشگاه صنعتی نوشیروانی بابل

2 دانشیار دانشگاه صنعتی بابل

3 دانشجوی دکترا دانشگاه صنعتی بابل

چکیده

در این مقاله، از ترکیب روش‌های تئوری نور فیزیکی (PO)، تئوری پراکنش (تفرق) فیزیکی (PTD) و جریان‌های معادل (MEC) برای محاسبه RCS اجسام پیچیده استفاده شده است. مدل کردن جسم پیچیده با مش‌بندی در نرم‌افزار آباکوس صورت گرفته است، بدین ترتیب که عمل مش‌بندی یک‌بار برای سطح و یک‌بار برای لبه‌های جسم انجام می‌شود. سپس با انتقال اطلاعات مش-بندی به نرم‌افزار MATLAB، تئوری نور فیزیکی را بر سطح و روش جریان‌های معادل با ضرایب PTD ، بر لبه‌ها اعمال می‌گردد و با مجموع میدان‌های الکتریکی دیده شده از مش‌های موجود در سطح و لبه‌ها، سطح مقطع راداری کل جسم با در نظر گرفتن اثر لبه‌ها به دست می‌آید. نتایج شبیه‌سازی نشان می‌دهد که الگوریتم ارائه شده بوسیله ما، با نتایج نرم‌افزار CST-MS مطابقت بسیار مناسبی دارد و قادر است مشخصات RCS را با پیچیدگی کم‌تر و در مدت زمان کمتر تعیین کند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

RCS Calculatoin of Complex objects With PO/PTDMEC

نویسندگان [English]

  • m taslimi 1
  • A Ebrahim zade 2
  • Davoud Akbarzadeh 3

1 Master of Science, electrical and computer engineering college, Babol Noshirvani University of Technology

2 Associate Professor, electrical and computer engineering college, Babol Noshirvani University of Technology

3 PhD Student electrical and computer engineering college, Babol Noshirvani University of Technology

چکیده [English]

In this paper, RCS of complex objects was calculated by using combination of physical optics theoream, physical theory of diffraction and method of eqiuvalent current. modeling of complex object was done with meshing in Abaqus Software.so first by meshing the surface of object and then meshing the edges of the object, then by transferring of these data to MATLAB software, physical optics theory was implmented to each mesh of the object surface and physical theory of diffraction and eqiuvalent current theory was implemented to object edges and by summation of electric field was seen from surface meshes and edges, total cross section of the object was obtained with consideration of edge effect. simulations results shows our algorithm has good agreement with CST-MS result and able to determine RCS features with lower complexity low time consuming

کلیدواژه‌ها [English]

  • radar cross section(RCS)
  • physical optics theorem
  • physical theory of diffraction
  • method of eqiuvalent current
  • complex objects
  • meshing in Abaqus

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