هدایت تناسبی با بازخورد شتاب خطی و شتاب زاویه ای خط دید

نوع مقاله : مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

دانشکده مهندسی مکانیک، دانشگاه تربیت مدرس، تهران، ایران

10.30699/jsst.2021.1260

چکیده

در این مقاله، قانون هدایت تناسبی با بازخورد ترکیب وزنی شتاب خطی و شتاب زاویه‌ای خط‌دید پیشنهاد شده است. برای این منظور، تحلیل فاصله خطای جامعی برای هدایت تناسبی با بازخورد شتاب خطی و هدایت تناسبی با بازخورد شتاب زاویه‌ای خط‌دید ناشی از خطای سمت اولیه، مانور هدف و نویز جستجوگر صورت پذیرفته است. سیستم هدایت و کنترل با تابع تبدیل دوجمله‌ای مرتبة پنجم مدل شده است. در حالت خاص و بر مبنای تحلیل فاصلة خطا، هدایت تناسبی با بازخورد شتاب زاویه‌ای با اصلاح بهره برای جستجوگرهای مادون قرمز پیشنهاد شده است. مقایسة استراتژیهای هدایت تناسبی با استفاده از ضریب ناوبری مؤثر معادل که بر اساس حل پروفیل نرخ چرخش خط‌دید تعریف شده، صورت پذیرفته است. به علاوه، قانون هدایت بهینة مرتبه اول به فرم هدایت تناسبی با بلوک تناسبی– مشتقی با بهره‌های متغیر تبدیل شده است.

کلیدواژه‌ها


عنوان مقاله [English]

Proportional Navigation with Linear Acceleration and Line-of-Sight Acceleration Feedbacks

نویسندگان [English]

  • S. Hamid Jalali Naieni
  • Ali Arabian Arani
Department of Mechanical Engineering, Tarbiat Modares University, Tehran, IRAN
چکیده [English]

In this paper, a modified proportional navigation (PN) with weighted combination of linear acceleration and line-of-sight (LOS) acceleration feedback is suggested. For this purpose, a comprehensive miss distance analysis is carried out for PN with linear acceletation feedback and PN with LOS acceleration feedback using a fifth-order binomial guidance and control system. The miss distance (MD) due to initial heading error, target acceleration, and seeker noise is separately analysed. As a special case, a modified PN with acceleration feedback using variable gains is suggested based on MD analysis for infra red seekers. The comparison of PN strategies is carried out using an equivalent effective navigation ratio, defined by using LOS rate profile solution. In addition, the first-order optimal guidance law is converted into PN with PD block with variable gains.

کلیدواژه‌ها [English]

  • Proportional navigation
  • LOS Acceleration feedback
  • Miss Distance Analysis
  • Effective Navigation Ratio
  • Optimal guidance
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