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Barker码的一些结论和二元码的优选问题
Barker码 二元码 选码方法
2009/9/1
本文最终证明了不存在n>13位的Barker码,并探索了二相码的解析优选法。文中定义了一个Yn矩阵,并由Yn导出了二相码的重量w,Hamming距离d,游程数ι和码长n之间的关系式,所得关系不仅揭示出二相码各参数之间的内在联系,而且可用它来解决Barker码的存在性问题,从而将二相码的优选问题建立在解析的基础上。文中还举出了应用实例。
“EXPLORATIONS OF MICROBIAL METABOLISM” was the title chosen by H. A. Barker for his summary of his lifelong scientific accomplishments in 1978. His title was descriptive and accurate, but characterist...
2007年12月19日，英国剑桥大学考古系主任、麦克唐纳考古研究所所长Graeme Barker教授携夫人来考古所访问，并做题为《帝国统制与沙漠化：约旦费南谷地的狩猎、畜牧、农业和矿业考古》的学术演讲。演讲会由考古所副所长陈星灿博士主持。来自北京大学、考古所、中国社会科学院研究生院等单位的专家学者和学生30多人参加了演讲会。 Graeme Barker教授为迪斯尼讲座教授、剑桥大学圣约翰学院院士。...
17/05/2007，Kate Barker CBE, author of the Barker Review of Housing Supply, will explore the reasons for, and consequences of, the recent sharp rise in house prices in a lecture at the University of Sa...
Clay Deposits of Las Aguilas Formation, Barker, Buenos Aires Province, Argentina
Argentina Kaolinite Lateritic alteration Refractories Reserves
2012/2/10
Mineralogical, chemical, and geological aspects of four types of clay deposits in Las Aguilas Formation northwest of Barker in Buenos Aires Province, Argentina, indicate that these products of laterit...