并元序列研究  

The Study of Dyadic Sequence

作　　者：张慧玲[1] 许成谦[1] 

机构地区：[1]燕山大学信息与工程学院,河北秦皇岛066004

出　　处：《无线电通信技术》2008年第6期32-35,共4页Radio Communications Technology

基　　金：国家自然科学基金(NO.60272026)

摘　　要：对并元码偶作出进一步研究,首先提出了一类新的区组设计——并元加集偶的概念,研究了并元加集偶的一些特性。然后给出了并元加集偶与并元码偶的等价关系,应用这一等价关系给出了并元码偶存在的必要条件,也为并元加集偶的构造提供了理论依据。最后还研究了并元码偶的Walsh谱特性和重量分布特性。通过这些问题的研究,展示了Walsh变换新的应用。这些存在条件在这类码的理论研究和计算机搜索中有重要的作用。This paper does more research on dyadic code pairs. Firstly, a new block design （dyadic addition set pairs） is defined. The properties of dyadic addition set pairs are studied. Secondly, the equivalent relationship between dyadic addition set pairs and dyadic code pairs is given. For using this equivalent relationship, the necessary conditions for the existence of the code are given. Theoretical basis to research dyadic code pairs is provided. Finally, the properties for dyadic code pairs in Walsh transformation spectrum and weight spectnnn are studied. Through the studies of these problems, the new application of Walsh transformation is presented as well. And these existing conditions are vital in the study of theories and search of computers about this kind of code.

关 键 词：区组设计 并元加集偶 并元码偶 Walsh谱特征 

分 类 号：TN911.2[电子电信—通信与信息系统]