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Chapter 2. Convolutional Codes 2.1 Encoder Structure

2.1 Encoder Structure A convolutional code introduces redundant bits into the data stream through the use of linear shift registers as shown in Figure 2.1. + + D D D D D + x(1) x(2) c(1) c(2) c(3) Figure 2.1: Example convolutional encoder where x(i) is an input information bit stream and c(i) is an output encoded bit stream [Wic95].

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