آنتن آرایه ای نامسطح برای تخمین بهینه زاویه ورود سیگنال

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشگاه علم و صنعت ایران

چکیده

در این مقاله سعی بر آن است که با استفاده از آرایه­های نامسطح و شکل­پذیر، بهترین دقت تخمین پارامتر سیگنال منبع به­دست بیاید. به این منظور از الگوریتم شناخته‌شده MUSIC برای جهت­ یابی ورود سیگنال استفاده شده است. برای طراحی دقیق ساختار آرایه­ای، اثر تشعشعی عنصر­های آنتنی نیز بر اساس شبیه­سازی­های تمام موج لحاظ گردیده است. نتایج به‌دست‌آمده نشان­گر آن است که ساختار آرایه­ای غیرمسطح ارائه‌شده با 7 عنصر آنتنی و زوایای جانبی 45 درجه در تمامی زوایا به‌ویژه در زوایای نزدیک به افق دقت تخمین زوایه­ ای بسیار بهتری در مقایسه با آرایه مشابه با ساختار مسطح را به­ دست می­دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Conformal Array Antenna for Optimized DOA Estimation Performance

نویسندگان [English]

  • Sirous Mohammadi
  • Armin Ghani
  • seyed hasan Sedighy
Iran University Of Science And Technology
چکیده [English]

A conformal array with directive patch antenna element is designed and proposed to achieve optimum direction of arrival performance. The MUSIC method is used for the proposed array evaluation and compassion where the antenna radiation patterns extracted from the full wave simulation software are encountered in the DOA estimation process. Antenna mutual coupling and radome effect are among the radiation patterns used to achieve more precise results. The simulations results prove that conformal array achieves better DOA estimation performance than the planar array antenna especially in the horizontal plane. Moreover, the conformal antenna array angle is evaluated to achieve optimum conformal array structure.

کلیدواژه‌ها [English]

  • Direction of Arrival (DOA)
  • MUSIC
  • Conformal Array
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