Unlike the convolutional codes considered in this chapter, we recall from Chapter 6 that the convolutional code
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Unlike the convolutional codes considered in this chapter, we recall from Chapter 6 that the convolutional code used in the voice band modem V.32 modem is nonlinear. Figure shows the circuit diagram of the convolutional encoder used in this modem; it uses modulo-2 multiplication and gates in addition to modulo-2 additions and delays. Explain the reason for nonlinearity of the encoder in Figure, and use an example to illustrate your explanation.
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Yan Mod-2 multiplier Output Input Mod-2 adder Flip-fiop Yon
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Nonlinearity of the encoder in Fig is determined by adding modulo2 in a bitbybit manner a pair of se...View the full answer
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