7 - Line Coding Explained + Solved Problems (NRZ, Manchester, AMI) - Part 3
في هذا الفيديو نشرح أساسيات Line Coding في مادة الاتصالات الرقمية، مع حل مجموعة من المسائل التطبيقية خطوة بخطوة. نتناول أهم تقنيات الترميز الخطي المستخدمة مثل: NRZ-L و NRZ-M و Manchester (Bi-phase) و AMI، مع توضيح كيفية تمثيل الإشارات الثنائية على شكل موجات زمنية، وفهم الفرق بين كل طريقة. يتضمن الفيديو: رسم الإشارات (Waveforms) لمختلف تقنيات Line Coding مقارنة بين NRZ و RZ و Manchester و AMI فهم تأثير كل تقنية على الإشارة المرسلة التحويل بين أنظمة الترميز المختلفة كما قمت بإنشاء أداة تفاعلية لتسهيل فهم هذه المفاهيم: https://MohammedS2lah.github.io/Inter... يمكنك من خلالها تجربة سلاسل ثنائية مختلفة ورؤية شكل الإشارة لكل تقنية بشكل مباشر. هذا الشرح مناسب لطلاب هندسة الاتصالات وكل من يدرس الاتصالات الرقمية أو يبحث عن شرح Line Coding بالعربي بطريقة مبسطة وواضحة. في حال وجود أي استفسار، يمكنكم طرحه في التعليقات. In this video, I go through the basics of line coding in digital communications and solve a set of typical problems step by step. We cover common encoding schemes such as NRZ-L, NRZ-M, Manchester (Bi-phase), AMI, and other formats, and see how each one represents binary data as a waveform. I also work through examples involving PCM encoding and waveform sketching, similar to what you might see in exams. Some of the problems include: Drawing waveforms for different line coding techniques Comparing NRZ, RZ, Manchester, and AMI formats Understanding how encoding affects the transmitted signal Converting between different coding schemes RZ (Return-to-Zero) NRZ (Non-Return-to-Zero) NRZ-L (Level) NRZ-M (Mark) NRZ-S (Space) NRZ-I (Invert) AMI (Alternate Mark Inversion) I also built a simple interactive tool to help visualize these techniques: https://MohammedS2lah.github.io/Inter... You can use it to experiment with different binary sequences and encoding formats. This video is intended for students studying digital communications or anyone reviewing line coding concepts. If something isn’t clear, feel free to ask in the comments.

7 - Line Coding Explained + Solved Problems (NRZ, Manchester, AMI) - Part 1_v2

7 - Line Coding Explained + Solved Problems (NRZ, Manchester, AMI) - Part 2
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