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Digital Data and Line Coding Data and Computer Communication

Digital Data and Line Coding Data and Computer Communication. Suherman , PhD Reference: Wikipedia elearning.vtu.ac.in. Digital Data. Dipresentasikan dengan nilai “0” dan “1” Pasangan “0” dan “1” disebut binary number ( biner )

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Digital Data and Line Coding Data and Computer Communication

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  1. Digital Data and Line CodingData and Computer Communication Suherman, PhD Reference: Wikipedia elearning.vtu.ac.in

  2. Digital Data • Dipresentasikandengannilai “0” dan “1” • Pasangan “0” dan “1” disebut binary number (biner) • Banyaknyanilai “0” dan “1” tiapdetikdisebutdengan “bit rate”. • Dalam line/baseband coding dan broadband coding (modulasi), terkadang 1 digit diwakili 1 simbol, tapijugaterkadang 2, 4, 8 bit diwakili 1 simbol. Banyaknyasimbol per detikdisebut “Baud rate”.

  3. Sumber Data Digital • Digitalisasisuara: suara analog, disamplingkemudiandiubahmenjadi data digital: PCM24, PCM30, ADPCM, CELP danvocoderlainnya. • Transducer: alatukur yang mengubahkarakteristikalammenjadi data biner. • Video. • Data.

  4. Line Coding • Line coding atau baseband coding adalahpengkodeannilai “0” dan “1” dalamteganganlistrik. • Dibutuhkan agar simbol “0” dan “1” dapatditransmisikansecaraefectivemelaluikabel. • Representasi “0” dan “1” bervariasi. Karenaperubahanpulsateganganmemilikispektrumfrekuensi, makadibutuhkanrepresentasi yang efektif, agar kecepatan transfer semakintinggi.

  5. Line Coding • Dimanasaja line coding dibutuhkan? • Serial: Non-Return-to-Zero (NRZ), Polar NRZ, NRZ inverted, Bipolar encoding, Manchester encoding, Differential Manchester encoding, HDB3. • Serial interfacing: RS-series (RS-232), TIA-series, EIA-series, MIL-series. • Paralel interfacing: LPT-series, IEEE-1284, dll • Connector: DE-9 (DB-9), DB25, RJ11, RJ45, DIN-8, dll

  6. Line Coding Unipolar Coding:

  7. Line Coding • Polar Coding

  8. Line Coding • Non-Return to Zero (NRZ)

  9. Line Coding • Return to Zero (RZ)

  10. Line Coding • Manchester Coding

  11. Line Coding • Differential Manchester Coding

  12. Line Coding • AMI (Alternate Mark Inversion) atauBnZS (Bipolar n-Zero Substitution)

  13. Line Coding • 2B1Q (2-Binary 1-Quartenary) - Four voltage level

  14. Line Coding • MLT3 (Multi Line Transmission Three Leve)

  15. StudiLanjut Common line codes • AMI • Modified AMI codes: B8ZS, B6ZS, B3ZS, HDB3 • 2B1Q • 4B5B • 4B3T • 6b/8b encoding • Hamming Code • 8b/10b encoding • 64b/66b encoding • 128b/130b encoding • Coded mark inversion (CMI) • Conditioned Diphase • Eight-to-Fourteen Modulation (EFM) used in Compact Disc • EFMPlus used in DVD • RZ — Return-to-zero • NRZ — Non-return-to-zero • NRZI — Non-return-to-zero, inverted • Manchester code (also variants Differential Manchester & Biphase mark code) • pulse-position modulation (a generalization of Manchester code) • Miller encoding (also known as Delay encoding or Modified Frequency Modulation, and has variant Modified Miller encoding) • MLT-3 Encoding • Hybrid Ternary Codes • Surround by complement (SBC) • TC-PAM Optical line codes: • Carrier-Suppressed Return-to-Zero • Alternate-Phase Return-to-Zero Serial – Paralel Port Connectors

  16. Thesis?? - Analysis danSimulasiRepresentasiSpektral Line Coding

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