بهینه سازی مسیر حرکت پهپادها جهت بیشترین پوشش در تهیه تصاویر

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشگاه مالک اشتر

چکیده

پهپادها امروزه جایگاه مهمی در مجموعه قدرت نظامی علی­الخصوص در حوزه پدافند غیرعامل در کشورهای مختلف دنیا کسب کرده­اند. این مجموعه با تکیه بر توان اجرای عملیات در شب و روز در مناطق دور و نزدیک بر ضد اهداف ساکن و متحرک و در تمام شرایط آب و هوایی و امکان پروازهای هدایت شونده از دور و یا تمام خودکار، دستاوردهای نظامی و سیاسی بسیار مهمی را در منازعات نظامی سال­های اخیر به­دست آورده­اند. مهمترین هدف این تحقیق تهیه بهترین مسیر برای پهپاد­ها به شکلی که بیشینه پوشش منطقه در حین پرواز حاصل شود. یکی از عملیاتﻫﺎ در ﺳﺎﻣﺎﻧﻪ­ﻫﺎی اﻃﻼﻋﺎت مکانی ﻣﺤﺎﺳﺒﻪ دید در لایه­هایی ﺑﺎ ﺳﺎﺧﺘﺎر ﺷﺒﮑﻪای اﺳﺖ. در این تحقیق سعی شده است الگوریتمی توسعه داده شود که با استفاده از مدل رقومی ارتفاعی منطقه و مدل­های ریاضی، نقشه دید سنجنده­های پهپاد به­دست آید. سپس نتایج به­دست­آمده بر روی نقشه مدل رقومی ارتفاعی به صورت گرافیکی نمایش داده شده است. این الگوریتم برای تمامی پیکسل­های موجود در نقشه مدل رقومی ارتفاعی اجرا شده و پیکسل­هایی که دارای بیشترین نواحی دید هستند بر روی نقشه مشخص می­شوند. در انتها مسیری برای این پیکسل­های ذخیره شده برازش داده شده و بعد از انجام پردازش‌های لازم مسیر نهایی پرواز پهپاد مشخص می­شود. مشخصه اصلی مسیر نهایی این است که پهپاد با کمترین مسافت پرواز، می‌تواند بیشترین پوشش را در کسب اطلاعات از دشمن داشته باشند. در نهایت در نرم­افزار متلب مسیر نهایی با مسیر اولیه مقایسه شده مشاهده می­شود که حدودا 83% مطابقت دارند.

کلیدواژه‌ها

عنوان مقاله [English]

UAV Rout Optimization for Maximum Coverage in Images

چکیده [English]

Nowadays UAVs have gained an important role in the military especially in the passive defence in different countries of the world. These tools are based on the ability to carry out day-and-night operations for near or remote areas, against static or dynamic targets, in all weather conditions, and the possibility of flights in guided or automatic manners which have gained military and political achievements in recent years conflicts. The main objective of this study is providing the optimization path for UAVs in a way that maximizes the coverage of the area during flights. One of the analyses in Geo-Spatial Information Systems is the line-of-sight analysis in the raster data model. In this research, an algorithm is developed to obtain a visibility map of the UAVs’ sensors by using the Digital Elevation Model and mathematical models. Then, the obtained results are displayed graphically on the Digital Elevation Model. This algorithm is implemented for all pixels in the DEM and the pixels with the most visibility areas are pointed in the map. At the end, a path for these stored pixels is fitted and, after performing the necessary procedures, the final flight path of the UAV will be specified. The main characteristic of the final route is that a UAV with the shortest flight can provide the most coverage for information from the enemy. Finally, in the MATLAB software, by comparing the first route and the final map, there is about 83% overlap.       

کلیدواژه‌ها [English]

  • Optimization
  • UAV
  • Maximum Coverage
  • Digital Elevation Model

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سابقه مقاله

  • تاریخ دریافت: 17 فروردین 1395
  • تاریخ بازنگری: 14 اسفند 1397
  • تاریخ پذیرش: 28 شهریور 1397

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