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Register a new userDesign and Simulation of Partial SDR Platform
تصميم و محاكاة جزئيين لمنصة اتصال لاسلكي محدد برمجياً (SDR)
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محمد سعيد صفدي( باحث )
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تعرف أنظمة الاتصال اللاسلكي المحددة برمجياً SDR بأنها منصات قابلة للبرمجة لإعـادة التشكيل بدرجة عالية، الأمر الذي يمكّن من بناء و تشكيل نظم الاتصال اللاسلكية النقالة من الجيلين الثالث و الرابع التي يتعاظم استخدامها و الحاجة إليها بشكل سريع. و ينـدرج ضـمن هذه الأنظمة (SDR) الكثير من معالجات الإشارة الرقمية المتقدمـة مثـل: تقـدير القنـاة و التسوية و تصحيح الأخطاء الأمامي و الهوائيات المتكيفة و المـستقبل الـشوكي و التعـديل و خوارزميات ضغط المعلومات المتقدمة و عملية ترميز الإشارة الصوتية - الفوكودر.
Software Defined Radios (SDR) are highly configurable hardware and software platforms that enable the implementation of the rapidly expanding 3G and 4G digital wireless communication infrastructures. Many sophisticated signal processing tasks are performed in a SDR platform, for example: channel estimation, equalisation, forward error correction, adaptive antennas, rake receiving, modulation, advanced compression algorithms, and vocoding.
References used
"Software Radio: A modern Approach to Radio Engineering" by: J.H.Reed; Prentice-Hall, 2002
"Digital Hardware Choices for Software Radio (SDR) Baseband Implementation" by: M.S.Safadi , D.Ndzi, IEEE Intl. conf. on ICT ICTTA-06; Damascus April. 2006
"Astudy of Software Radio Evaluation & Experimentation Platforms" by: Y.Jamoor&M.S.Safadi, IEEE Intl. conf. on ICT (ICTTA-04), Damascus, April 2004
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