采用Chen-Mbius斜正交性的保密通信系统设计与仿真  

Design and Simulation of High-Confidentiality Communication System Based on Chen-Mbius Oblique Orthogonality

作　　者：吴春法[1] 李国刚[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2012年第4期392-395,共4页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(A0640005);中央高校基本科研业务费专项资金资助项目;国务院侨办科研基金资助项目(10QZR02);福建省泉州市科技计划项目(2011G6)

摘　　要：为克服传输线带宽受限的困难,利用Chen-Mbius变换生成的函数族的斜正交性设计一种高速保密的通信系统,并通过DSP Builder仿真平台验证了通信系统的正确性.采用高速A/D转换将各种信号都转换成数字信号,然后将串行的数字信号转换成N位一组的并行信号,每位信号(1或0)用一个特殊变换函数族的逆变换波形进行编码.输出时,这N位(或N个)编码波形是直接叠加在一起,从一条传输线上输出的,而在接收端,这些输出的信号被同时输入N个并行的信号判别端.每个判别端生成一个特殊变换函数的正函数信号与送入的N个编码波形的叠加进行正交积分运算,判别出每一位的数字信号.To overcome the difficulties of limited bandwidth transmission in line, a high-speed confidentiality communication system is designed using the oblique-orthogonality of function sets evaluated by Chen-Mobius transform, and the correctness of the communication system is verified through DSP Builder simulation platform. By using the high-speed A/D converter, a variety of the signals are converted to digital signals, then, the serial digital signals are converted into a set of N-bit parallel signals, each signal （1 or 0） be coded by the inverse transform of a special transformation function sets evaluated by Chen-M0bius transform. When they been transmitted through the line, this N-bit （or N） encoded waveform is directly mixed together. At the receiver, these output signals are simultaneously put into N parallel discriminations of signal. When the N-bit （or N） encoded waveform was calculated by means of the orthogonality integral with each function set which was generated by the discriminations of signal, we can identify each of the digital signal.

关 键 词：Chen-Mbius变换 斜正交性 正交积分 通信系统 数字信号 

分 类 号：TN919.72[电子电信—通信与信息系统]