A Hybrid Constellation Pattern for a Regional Satellite Navigation System for Iran

  • سال انتشار: 1400
  • محل انتشار: نوزدهمین کنفرانس بین المللی انجمن هوافضای ایران
  • کد COI اختصاصی: AEROSPACE19_155
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 149
دانلود فایل این مقاله

نویسندگان

S Zohrabzadeh Bozorgi

PhD student, Aerospace Eng. Department, Amirkabir University of Technology,

A Naghash

Associate professor, Aerospace Eng. Department, Amirkabir University of Technology

چکیده

This paper proposes a hybrid constellation comprising GEO and LEO satellites as the space segment of a regional satellite navigation service to be used by users within Iranian territory. At first, typical satellite constellation patterns suitable for local services and currently operational systems are introduced. Then the background of proposed constellations for local navigation in Iran in the literature is reviewed. It is concluded that traditionally, regional navigation constellations are designed based on satellites in GEO, IGSO and eccentric IGSO orbits. New approaches in leveraging LEO constellations for satellite navigation along with the advantages of such patterns for global and local coverage are presented. The capability of navigation with LEO satellites in decreasing the convergence time of PPP due to the rapid change of satellites geometry is described. Then, a new approach based on a hybrid constellation comprising GEO and LEO satellites is proposed for local satellite navigation and the economical and operational advantages of such combination is expressed. It is shown that such hybrid constellation can be economically profitable. Different viable options for the proposed hybrid constellation are discussed and the optimization problem to reach the desired combination is defined. The proposed hybrid concept can be addressed by satellite constellation planners

کلیدواژه ها

Satellite Navigation, Regional Navigation, Hybrid Constellation

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.