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混沌跳频序列发生器的FPGA实现
引用本文:陈勇,凌聪.混沌跳频序列发生器的FPGA实现[J].电子学报,2001,29(7):868-872.
作者姓名:陈勇  凌聪
作者单位:1. 总参谋部第63研究所,江苏南京 210016;2. 南京通信工程学院,江苏南京 210016
基金项目:国家自然科学基金,69931040,
摘    要:本文根据单峰映射产生混沌序列极易被攻击的特点,采用高维的混沌系统来设计混沌跳频序列发生器.针对n维非线性数字滤波器产生序列的周期和分布特性,我们在系统结构上作了相应的设计,并最终应用FPGA(现场可编程门阵列)技术实现混沌跳频序列发生器.跳频序列发生器产生序列的测试结果表明,序列具有均匀分布,大的线性复杂度,汉明相关服从均值为L/q的高斯分布,因此混沌跳频序列发生器的设计是成功的.

关 键 词:跳频  混沌  非线性数字滤波器  FPGA  
文章编号:0372-2112 (2001) 07-0868-05
收稿时间:2000-04-26

FPGA Realization of a Chaotic FH Sequence Generator
CHEN Yong,LING Cong.FPGA Realization of a Chaotic FH Sequence Generator[J].Acta Electronica Sinica,2001,29(7):868-872.
Authors:CHEN Yong  LING Cong
Affiliation:1. The 63rd Research Institute of PLAGSH,Nanjing,Jiangsu 210016,China;2. Nanjing Institute of Communications Engineering,Nanjing,Jiangsu 210016,China
Abstract:In this paper,we design a chaos-based frequency hopping (FH) sequence generator with multidimensional chaotic systems because the sequences generated by unimodal maps are easy to attack.Some modifications are introduced to n-dimensional nonlinear digital filters in order to improve the period and distribution properties of the resulted sequences.Moreover,the generator is realized in FPGAs (field programmable gate arrays) and then tested.The generator produces sequences with uniform distribution,large complexity and Hamming correlation of Gaussian distribution with mean L/q.Test results suggest that the design of generator is successful.
Keywords:FPGA
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