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我校应用数学系肖国镇教授等的“非线性前馈网络的频谱分析与信息保密”研究成果荣获1989年国家自然科学奖四等奖。该课题组经两年多的努力,完成论文28篇。其研究成果主要在频谱分析、公钥密码、伪随机序列等几个方面。特别是他们用频谱方法对布尔函数进行了研究,得到了布尔函数与某些变元无关的条件,此结论是非线性前馈研究中的一个突破;他们对于开关函数
Professor Xiao Guozhen of Department of Applied Mathematics in our school won the fourth prize of National Natural Science Award in 1989 for his research on “Spectrum Analysis and Information Confidentiality of Nonlinear Feedforward Networks.” After more than two years of hard working, the research group completed 28 papers. Its research results mainly in spectrum analysis, public key cryptography, pseudo-random sequence and so on. In particular, they studied the Boolean function with the spectrum method and obtained the condition that the Boolean function has nothing to do with some arguments. This conclusion is a breakthrough in the nonlinear feedforward research.