一类新的完美和几乎完美的16-QAM序列  

A new class of perfect and almost perfect 16-QAM sequences

作　　者：许云艳 肖光世[1] 曹喜望[1] 

机构地区：[1]南京航空航天大学数学系,南京211106

出　　处：《计算机工程与应用》2014年第14期100-102,218,共4页Computer Engineering and Applications

基　　金：国家自然科学基金青年基金资助项目(No.1008GBA13001)

摘　　要：针对调制解调方式的高效性,提出低自相关值的16-QAM序列,使用完美的二元序列构造完美的4-QAM序列,基于完美的4-QAM序列构造完美的16-QAM序列,对所构造的完美16-QAM序列的能量效率进行分析,提出用完美的4-QAM序列和交织结构构造几乎完美的16-QAM序列,并给出了相应条件。In view of enhancing the modulation efficiency of communication system, the 16-QAM sequences having low auto-correlation values are proposed, and the perfect 4-QAM sequences are constructed by the perfect binary sequences, and the perfect 16-QAM sequences based on the perfect 4-QAM sequences are constructed. In addition, the energy effi-ciency of the constructed perfect 16-QAM sequences is analyzed. A new construction of almost perfect 16-QAM sequences by using the perfect 4-QAM sequences and interleaved structures is provided, and the corresponding condition is presented.

关 键 词：正交幅度调制(QAM) 完美序列 几乎完美序列 自相关值 能量效率 

分 类 号：O157.4[理学—数学]