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公开(公告)号：US20140035766A1
公开(公告)日：2014-02-06
申请号：US14004818
申请日：2012-03-14
申请人： Pallavi Reddy
发明人： Pallavi Reddy
IPC分类号： H03M13/37
CPC分类号： H03M13/3753 , H03M13/2975
摘要： A stopping criterion for a turbo-coding method. The criterion is based on states of a trellis determined by forward-backward recursion. If, for at least one elementary decoding stage, a transition ending state of a previous symbol is found identical to a transition starting state of a current symbol, for every symbol of the block but a first one and a last one, the decoding path is considered as consistent, a hard decision on the extrinsic information is made, and the turbo-decoding stops.
摘要翻译： turbo编码方法的停止标准。 该标准是基于通过前向 - 后向递归确定的网格状态。 如果对于至少一个基本解码阶段，发现先前符号的转移结束状态与当前符号的转换开始状态相同，对于块的每个符号，而是第一个和最后一个，解码路径是 被认为是一致的，对外部信息做出了艰难的决定，turbo解码停止。
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公开(公告)号：US09203442B2
公开(公告)日：2015-12-01
申请号：US14004846
申请日：2012-03-14
申请人： Pallavi Reddy
发明人： Pallavi Reddy
CPC分类号： H03M13/3753 , H03M13/2975 , H03M13/3905 , H03M13/3972
摘要： A stopping criterion for a turbo-encoding method. The criterion is based on a state metrics calculated by a forward-backward recursion in a coding trellis of an elementary encoder. If, for at least one elementary decoding stage, forward state metrics of a last symbol of a block or backward state metrics of a first symbol of a block exceeds a first threshold, the turbo-decoding iterations are stopped. If it is not the case, it is further checked whether the state metrics exceeds a second threshold and if the absolute value of the difference between the current state metrics and the state metrics obtained at the previous iteration lies below a given margin. In the affirmative, the turbo-decoding iterations are stopped and a hard decision is taken on extrinsic values.
摘要翻译： turbo编码方法的停止标准。 该标准基于由基本编码器的编码格架中的前向后向递归计算的状态度量。 如果对于至少一个基本解码级，块的最后一个符号的前向状态度量或块的第一个符号的后向状态量度超过第一阈值，则停止turbo解码迭代。 如果不是这种情况，则进一步检查状态度量是否超过第二阈值，并且如果当前状态度量与在先前迭代中获得的状态度量之间的差的绝对值低于给定余量。 肯定的是，turbo解码迭代被停止，并且对外在值进行硬判决。
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公开(公告)号：US09106266B2
公开(公告)日：2015-08-11
申请号：US14004818
申请日：2012-03-14
申请人： Pallavi Reddy
发明人： Pallavi Reddy
CPC分类号： H03M13/3753 , H03M13/2975
摘要： A stopping criterion for a turbo-coding method. The criterion is based on states of a trellis determined by forward-backward recursion. If, for at least one elementary decoding stage, a transition ending state of a previous symbol is found identical to a transition starting state of a current symbol, for every symbol of the block but a first one and a last one, the decoding path is considered as consistent, a hard decision on the extrinsic information is made, and the turbo-decoding stops.
摘要翻译： turbo编码方法的停止标准。 该标准是基于通过前向 - 后向递归确定的网格状态。 如果对于至少一个基本解码阶段，发现先前符号的转移结束状态与当前符号的转换开始状态相同，对于块的每个符号，而是第一个和最后一个，解码路径是 被认为是一致的，对外部信息做出了艰难的决定，turbo解码停止。
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公开(公告)号：US20140049411A1
公开(公告)日：2014-02-20
申请号：US14004846
申请日：2012-03-14
申请人： Pallavi Reddy
发明人： Pallavi Reddy
IPC分类号： H03M13/37
CPC分类号： H03M13/3753 , H03M13/2975 , H03M13/3905 , H03M13/3972
摘要： A stopping criterion for a turbo-encoding method. The criterion is based on a state metrics calculated by a forward-backward recursion in a coding trellis of an elementary encoder. If, for at least one elementary decoding stage, forward state metrics of a last symbol of a block or backward state metrics of a first symbol of a block exceeds a first threshold, the turbo-decoding iterations are stopped. If it is not the case, it is further checked whether the state metrics exceeds a second threshold and if the absolute value of the difference between the current state metrics and the state metrics obtained at the previous iteration lies below a given margin. In the affirmative, the turbo-decoding iterations are stopped and a hard decision is taken on extrinsic values.
摘要翻译： turbo编码方法的停止标准。 该标准基于由基本编码器的编码格架中的前向后向递归计算的状态度量。 如果对于至少一个基本解码级，块的最后一个符号的前向状态度量或块的第一个符号的后向状态量度超过第一阈值，则停止turbo解码迭代。 如果不是这种情况，则进一步检查状态度量是否超过第二阈值，并且如果当前状态度量与在先前迭代中获得的状态度量之间的差的绝对值低于给定余量。 肯定的是，turbo解码迭代被停止，并且对外在值进行硬判决。
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