دراسة التجميع التعامدي بتقسيم التردد OFDM في البث المرئي الرقمي الأرضي DVB-T و محاكاتها في بيئة الماتلاب

Authors

  • علي زيد

Abstract

يمثل التجميع التعامدي بتقسيم التردد Orthogonal frequency division multiplexing (OFDM) إحدى تقنيات التعديل المختارة للاتصالات اللاسلكية. يمكن أن ينتج OFDM معدلات كبيرة من البيانات مع مناعة كافية لما يسيء لقناة الاتصال الراديوية. الهدف من هذا المقال هو تمثيل الإشارات الأساسية في بيئة الماتلاب للتجميع التعامدي بتقسيم التردد OFDM في مرحلتي الإرسال و الاستقبال, في القناة الطبيعية و تزويد الوصف لكل مرحلة من الخطوات المتضمنة. ولهذا الغرض نستعمل كمثال؛ أحد إشارات OFDM المقترحة للإذاعة المرئية الرقمية
digital video broadcasting (DVB) المعيارية للبث المرئي الرقمي الأرضي DVB-T.

Orthogonal frequency division multiplexing (OFDM) is becoming one of the chosen modulation techniques for wireless communication. OFDM can provide large data rates with sufficient robustness to radio channel impairments. The purpose of this report is to simulate basic processing involved in the generation and reception of an OFDM signal in a physical channel and to provide a description of each of the steps involved. For this purpose, we shell use, as one example, one of the proposed OFDM signals of the digital video broadcasting (DVB) standard for European terrestrial DVB (DVB-T).

 

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Published

2019-01-30

How to Cite

1.
زيد ع. دراسة التجميع التعامدي بتقسيم التردد OFDM في البث المرئي الرقمي الأرضي DVB-T و محاكاتها في بيئة الماتلاب. Tuj-eng [Internet]. 2019Jan.30 [cited 2025Jul.12];33(2). Available from: http://www.journal.tishreen.edu.sy/index.php/engscnc/article/view/7284

Issue

Vol. 33 No. 2 (2011): العلوم الهندسية

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Articles

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