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METHOD AND DEVICE FOR DE-PUNCTURING TURBO-CODED DIGITAL DATA, AND TURBO DECODER SYSTEM
METHOD AND DEVICE FOR DE-PUNCTURING TURBO-CODED DIGITAL DATA, AND TURBO DECODER SYSTEM
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机译:涡轮编码数字数据的打标方法,装置及涡轮解码器系统
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摘要
A turbo decoder system decodes L-length digital data consisting of a systematic code and 1st and 2nd parity check codes, and includes a trellis controller obtaining the ratio of the bit-number Ep of the 1st/2nd parity check code to the bit-number D of an original systematic code and generating, based on the code rate of the digital data, a trellis control output indicating a target decoding trellis, which is selected by a turbo decoder to perform decoding operations. A zero-patch module patches zeros into the systematic code, and patches, based on the value of Ep/D, one or more zeros into the 1st/2nd parity check code so that parity check bits of the 1st/2nd parity check code and the zero-bit(s) form a periodically depunctured parity check code.
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机译:Turbo解码器系统对L长度的数字数据进行解码,该L长度的数字数据由系统代码以及1 和 Sup>奇偶校验码组成,并包括一个网格控制器,该控制器获取位的比率1 st Sup> / 2 nd Sup>奇偶校验码的位数Ep转换为原始系统代码的位数D,并根据数字数据的编码率生成,是指示目标解码网格的网格控制输出,由turbo解码器选择该网格控制输出以执行解码操作。零修补模块将零修补到系统代码中,然后根据Ep / D的值将一个或多个零修补到1 st Sup> / 2 nd Sup>奇偶校验中校验码,以使1 st Sup> / 2 nd Sup>奇偶校验码的奇偶校验位和零位形成周期性地打孔的奇偶校验码。
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