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Signal sets matched to groups

机译:信号组匹配组

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摘要

Recently, linear codes over Z/sub M/ (the ring of integers mod M) have been presented that are matched to M-ary phase modulation. The general problem of matching signal sets to generalized linear algebraic codes is addressed based on these codes. A definition is given for the notion of matching. It is shown that any signal set in N-dimensional Euclidean space that is matched to an abstract group is essentially what D. Slepian (1968) called a group code for the Gaussian channel. If the group is commutative, this further implies that any such signal set is equivalent to coded phase modulation with linear codes over Z/sub M/. Some further results on such signal sets are presented, and the signal sets matched to noncommutative groups and the linear codes over such groups are discussed.
机译:近来,已经提出了在Z / sub M /上的线性代码(整数环mod M),其与M进制相位调制相匹配。基于这些代码,解决了将信号集匹配到广义线性代数代码的一般问题。给出了匹配概念的定义。结果表明,在N维欧几里得空间中与抽象群匹配的任何信号本质上都是D. Slepian(1968)所说的高斯信道的群码。如果该组是可交换的,则这进一步意味着任何这样的信号集都等效于Z / sub M /上具有线性代码的编码相位调制。给出了关于此类信号集的一些其他结果,并讨论了与非交换组匹配的信号组以及此类组上的线性代码。

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