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Ideal Institute of Science and Technology

Ideal Institute of Science and Technology. Teacher Name: Md. Sozol Hossain Junior Instructor Computer IIST. Subject : Data Communication & Computer Network-1 Subject Code : 6663 Department : Computer Semester : 6 th. Lecture-3.

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Ideal Institute of Science and Technology

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  1. Ideal Institute of Science and Technology Teacher Name: Md. Sozol Hossain Junior Instructor Computer IIST

  2. Subject : Data Communication & Computer Network-1 Subject Code : 6663 Department : Computer Semester : 6th

  3. Lecture-3 মডুলেশনঃ ক্যারিয়ার ওয়েভের সাথে সিগনাল ওয়েভের মিশ্রণকে মডুলেশন বলা হয়। ডিমডুলেশনঃ কোন স্থান থেকে মডুলেটকৃত ডাটা পূনরায় অ্যানালগ ডাটাতে পরিণত করার প্রক্রিয়াকে ডিমডুলেশন বলে। Demodulation Modulation Modulator Analog Signal Analog Signal Fig: Demodulation

  4. মডুলেশনের প্রকারভেদঃ চিত্র: মডুলেশনের প্রকারভেদ

  5. AM মডুলেশনঃ Signal Carrier A.M. Wave Fig: AM Modulation

  6. FM (Frequency Modulation): t t O O Modulating Signal Carrier – fo t O FM Carrier

  7. ASK (Amplitude Shift Keying): Fig: Amplitude Shift Keying 0 1 1 1 1 0 1 1 0 Fig: Binary Amplitude Shift Keying

  8. Frequency Shift Keying: 0 1 1 1 Fig: Frequency Shift Keying

  9. Phase Shift Keying: 1 0 1 1 0 Fig: Binary Phase Shift Keying

  10. Thank You

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