Abstract
A guided scrambling (GS) coding technique is practically used to suppress the DC component within a channel bit stream. It is a candidate for a DC-free code in the next generation of the DVD standard. Typically the GS technique uses a convolutional operation or an addition operation in the Galois field (GF). This paper evaluates the performance of the convolutional GS and GF-addition GS on DC-component suppression, symbol error probability, and hardware complexity, and concludes that the GF-addition GS is more suitable for the next generation of the DVD standard than the convolutional GS with respect to the symbol error probability.
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