نوآوری‌های صنعتی

نوآوری‌های صنعتی

شبیه‌سازی و بررسی انتشار امواج الکترومغناطیسی رادارهای TTW در دیوارهای با جنس آجر و بتن برای کاربردهای تصویربرداری‌ صنعتی

نوع مقاله : مقاله پژوهشی

نویسنده
گروه مهندسی برق، دانشکده فنی و مهندسی، دانشگاه اراک، اراک، ایران.
چکیده
در این مقاله رادارهای موج پیوسته فراپهن‌باند در سوییپ فرکانسی 5/0 تا 8 گیگاهرتز ارائه شده است که این رادارها اجسام متحرک و ثابت پشت دیوارها را جست‌وجو می‌کند. هم‌زمان با انتشار امواج الکترومغناطیسی از یک محیط همگن به محیطی دیگر، یک تغییر امپدانس موج در مرز محیط ایجاد می‌شود. عدم تطبیق امپدانس به‌طورکلی منجر به بازتاب، جذب و انتقال امواج الکترومغناطیسی می‌شود. بنابراین لازم است که میزان ضریب بازتاب و ضریب انتقال مواد مختلف موردبررسی قرار گیرد تا رفتار آن‌ها نسبت به امواج الکترومغناطیسی درک شود. مزایای اصلی فراپهن‌باند برای ردیابی و تصویربرداری رادار برد کوتاه، شامل وضوح بسیار مناسب، بازده قدرت بالا، تداخل کم و توانایی تشخیص اهداف متحرک یا ثابت در محیط‌های مختلف صنعتی است. رادارهای Through-The-Wall (TTW) در سال‌های اخیر به‌عنوان یکی از روش‌های نوین تصویربرداری صنعتی و غیرمخرب مطرح شده‌اند. عملکرد این رادارها مبتنی بر انتشار و دریافت امواج الکترومغناطیسی از میان موانع فیزیکی مانند دیوارهای آجری و بتنی است.
کلیدواژه‌ها

عنوان مقاله English

Simulation and Investigation of Electromagnetic Wave Propagation of TTW Radars in Brick and Concrete Walls for Industrial Imaging Applications

نویسنده English

Hossein Malekpoor
Department of Electrical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran.
چکیده English

This paper presents ultra-wideband continuous wave radars in the frequency sweep of 0.5 to 8 GHz, which search for moving and stationary objects behind walls. As electromagnetic waves propagate from one homogeneous medium to another create a change in the wave impedance at the boundary of the medium. Impedance mismatch generally leads to reflection, absorption, and transmission of electromagnetic waves. Therefore, it is necessary to investigate the reflection coefficient and transmission coefficient of different materials to understand their behavior towards electromagnetic waves. The main advantages of ultra-wideband for short-range radar tracking and imaging include very good resolution, high power efficiency, low interference, and the ability to detect moving or stationary targets in various industrial environments. Through-The-Wall (TTW) radars have emerged in recent years as a new method of industrial and non-destructive imaging. The operation of these radars is based on the emission and reception of electromagnetic waves through physical obstacles such as brick and concrete walls.

کلیدواژه‌ها English

Continuous wave radars
ultra-wideband
imaging
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دوره 4، شماره 1 - شماره پیاپی 13
در حال انتشار
بهار 1405
صفحه 21-33

  • تاریخ دریافت 15 آذر 1404
  • تاریخ بازنگری 11 دی 1404
  • تاریخ پذیرش 17 دی 1404