基于高斯差分双线性映射的导频对称加密方法  

Pilot Carrier Symmetric Encryption Method Based on Gauss Difference Bilinear Mapping

作　　者：李琰[1] 

机构地区：[1]宜宾职业技术学院人文社科系,四川宜宾644000

出　　处：《科技通报》2015年第4期82-84,共3页Bulletin of Science and Technology

基　　金：四川省教育厅项目(11ZB003)

摘　　要：在保密通信中,导频信号需要通过加密方法实现同步控制,传统方法对保密通信的同步导频控制信号加密采用Co-training监督学习加密算法,无法获得足够泛化性能的控制密钥,承载信息信号所引起的导频信号的抗噪性能差,加密性能不好。提出一种基于高斯差分双线性映射的改进的training监督学习导频对称加密方法,构建半监督学习算法及驱动-响应式导频信号保密通信系统,引入SVM监督学习辅助策略和富信息策略到Tri-training学习过程,构建高斯差分双线性映射构建Sprott系统,得到导频加密信号的平面奇怪吸引子,构建保密通信的调制、解调与反向导频对称加密同步控制算法。仿真实验表明采用该算法进行导频信号对称加密,能使得通信系统中已调信号实现同步控制,又能承载信息加密传输,使其独立完成信道传输两端通信收发,抗噪性能和准确性较优。In secure communication, the pilot signal through encryption method is used to realize synchronous control, the traditional method of synchronous pilot for secure communication control signal encryption uses Co-training supervised learning encryption algorithm, it is unable to obtain the control key generalization performance enough, the anti noise performance of the pilot signal caused by the difference of information signal is bad, encryption performance is not good. A pilot carrier symmetric encryption method based on Gauss Difference bilinear mapping is proposed, Semi supervised learning algorithm and drive response pilot signal secure communication system is constructed, SVM supervised learning support strategies is introduced for rich information strategy to Tri-training learning process, the Gauss difference bilinear mapping to construct Sprott system, the plane strange attractor pilot encrypted signals is obtained, the modulation, demodulation and reverse construction of secure communication pilot symmetric encryption synchronization control algorithm is obtained. The simulation experiment shows that the algorithm can applied in symmetrical pilot signal encryption, it can make the modulated signal synchronization control system realize, but also can carry information encryption transmission, the independent channel transmission at both ends of a communication transceiver, the anti noise performance and the accuracy are better.

关 键 词：高斯差分 双线性映射 导频信号 对称加密 

分 类 号：TN918.6[电子电信—通信与信息系统]