Viterbi decoding

How decoding is performed for Convolutional codes? What is a Maximum likelihood decoder? What are soft decisions and hard decisions? How does the Viterbi algorithm work?The demodulator makes a firm or hard decision whether one or zero was transmitted and provides no other information for the decoder such as how reliable the decision is.

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Another class of linear codes, known as Convolutional codes. We studied the structure of the encoder and different ways for representing it.What are the state diagram and trellis representation of the code? How the decoding is performed for Convolutional codes? What is a Maximum likelihood decoder? What are the soft decisions and hard decisions? How does the Viterbi algorithm work?

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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A Novel High-Speed Configurable Viterbi Decoder for Broadband Access

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EURASIP Journal on Applied Signal Processing 2003:13, 1328–1334 c 2003 Hindawi Publishing Corporation Interleaved Convolutional Code and Its Viterbi Decoder Architecture Jun Jin Kong Department of Electrical and Computer Engineering, University of Minnesota, 200 Union Street, Minneapolis, MN 55455, USA Email: jjkong@ece.umn.edu Keshab K. Parhi Department of Electrical and Computer Engineering, University of Minnesota, 200 Union Street, Minneapolis, MN 55455, USA Email: parhi@ece.umn.

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Tìm hiểu phương pháp phát hiện và sửa lỗi theo Convolutional Coding và Viterbi Decoding. Mời các bạn cùng tham khảo tài liệu.

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The two fundamental building blocks of a digital communication system are modulation and channel coding. They enable reliable communication by providing signaling schemes and receiver structures that utilize the available spectrum and power efficiently.

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How the decoding is performed for Convolutional codes? -What is a Maximum likelihood decoder? -What are the soft decisions and hard decisions? -How does the Viterbi algorithm work?

29p huemanvdoc 23-11-2009 99 9   Download