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معلومات ثقافية، معلومات عامة

كيف يعمل نظام GPS؟

10 يناير 2013

كيف يعمل نظام GPS؟

GPS اختصار Global Positioning System، وهونظام فضائي لتحديد المواقع على الأرض والفضاء الذي يحيط بها، ويعتمد على وسائل الاتصال الكهرومغناطيسي بين مجموعة من الأقمار الصناعية والمحطات الأرضية (المستقبلات).

يستخدم في الاتصالات والأرصاد الجوية وتحديد المواقع، ويدار من قبل الولايات المتحدة الأمريكية، وأصبح استخدام هذا النظام شائعا للأغراض العسكرية والمدنية والتجارية، استحدث عام1973، وطور منذ عام 1998.

توجد أنظمة مشابهة في كل من روسيا واوروبا والهند والصين.

الدقة في تحديد المواقع حاليا تصل الى 20-30 سنتيمترا.

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