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افزودن گرههای مرجع جدید در یک سامانه مکان‌یاب به منظور بهبود تخمین موقعیت مکانی | ||
| رادار | ||
| مقاله 10، دوره 9، شماره 1 - شماره پیاپی 25، شهریور 1400، صفحه 97-106 اصل مقاله (4.93 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| نفیسه گلی حقیقی1؛ مهرزاد بیغش* 2 | ||
| 1دانشجوی دکتری، دانشکده مهندسی برق و کامپیوتر، دانشگاه شیراز، شیراز، ایران | ||
| 2استاد، دانشکده مهندسی برق و کامپیوتر، دانشگاه شیراز، شیراز، ایران | ||
| تاریخ دریافت: 07 خرداد 1400، تاریخ بازنگری: 10 مهر 1400، تاریخ پذیرش: 23 آذر 1400 | ||
| چکیده | ||
| در یک شبکه مکانیابی نحوه چیدمان گرههای مرجع در شبکه اثر قابلتوجهی بر دقت تخمین مکان نقاط مورد نظر دارد. در این مقاله، فرض بر این است که یک شبکه مشتمل بر تعدادی گره مرجع با چیدمانی مشخص شده برای مکانیابی است و هدف اضافه کردن تعدادی مرجع جدید به سامانه به منظور افزایش دقت مکانیابی است. در این شبکه، مکان یک گره بر اساس اندازهگیری فاصله تا گرههای مرجع تخمین زده میشود. برای این منظور با استفاده از نظریه قاب الگوریتمی ارائه شده که توسط آن مکان بهینه گرههای مرجع جدید به‌دست میآیند. اساس این الگوریتم چینش گرههای جدید بدون تغییر موقعیت مکانی گرههای مرجع موجود در سامانه به نحوی است که دترمینان ماتریس اطلاعات فیشر بیشینه گردد. نتایج شبیهسازیهای انجام گرفته کارایی الگوریتم پیشنهادی برای چیدمان بهینه گرههای مرجع جدید را نشان میدهد. | ||
| کلیدواژه‌ها | ||
| مکانیابی؛ چیدمان گرههای مرجع؛ نظریه قاب | ||
| عنوان مقاله [English] | ||
| An Investigation on the Effects of New Reference Node Addition on the location Estimation Improvement in Positioning Systems | ||
| نویسندگان [English] | ||
| Nafiseh Golihaghighi1؛ Mehrzad Biguesh2 | ||
| 1PhD Student, Faculty of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran | ||
| 2Professor, Faculty of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran | ||
| چکیده [English] | ||
| In a location estimation system, the deployment of reference nodes significantly affects the accuracy of estimating the location of the desired points. In this paper, it is assumed that the location system is equipped with a number of reference nodes in a specified arrangement, and the goal is to add a number of new reference nodes to improve the location estimation accuracy of a desired emitting node. In this network, the location of an emitting node is estimated by measuring the distances to the reference nodes. An algorithm is proposed to find the optimal place of the new added reference nodes using the frame theory. The basis of this algorithm is to arrange the new reference nodes without changing the location of the present reference nodes in the system in such a way that the determinant of the Fisher information matrix is maximized. The simulation results verify the efficiency of the proposed algorithm in the optimal deployment of new reference nodes. | ||
| کلیدواژه‌ها [English] | ||
| Location Estimation, Node Deployment, Frame Theory | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 309 تعداد دریافت فایل اصل مقاله: 282 |
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