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一种低复杂度的正六边形星座信号的解调算法

DOI: 10.13190/j.jbupt.2015.02.002

Keywords: 正六边形星座调制信号,解调算法,运算复杂度,信噪比门限,高斯-勒让德算法

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Abstract:

针对正六边形星座调制信号(HSC)解调算法未达最优,提出了一种基于非正交矢量投影的HSC低复杂度解调算法.在典型正六边形星座结构的基础上,分析计算了正六边形信号矢量的投影系数和算法的运算复杂度,研究了噪声对接收信号的影响,并结合高斯-勒让德数值分析方法给出了信噪比门限.结果表明,该解调算法正确运行的复杂度约为基向量投影解调算法的30%.

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