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8K mode interleaver with odd interleaving only and per OFDM symbol permutation code change in a digital video broadcasting (DVB) standard
8K mode interleaver with odd interleaving only and per OFDM symbol permutation code change in a digital video broadcasting (DVB) standard
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机译:8K模式交织器,仅奇数交织,并且在数字视频广播(DVB)标准中每个OFDM符号置换码发生变化
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摘要
A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit.
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