Power Spectrum Mask in Chaotic Secure Communication
Chaotic secure communication is mainly realized by chaotic mask, namely, the information signal is masked by chaotic signal with wide spectrum. Some key issues in chaotic mask have been studied in-depth. As an example, the typical master-slave chaotic synchronization system based on the modified Chuas circuit was introduced. The additive and multiplicative methods used in chaotic mask were deeply explored. The power spectral characteristics of the signal which was masked by chaotic signal were obtained through calculation and were deeply discussed. In conclusion, the two covered ways was summarized at the end of the paper, that the multiplicative method has better performances than additive method which requires the chaotic signal power should reach more than 10 times than the power of information signal to achieve complete mask.
chaos chaotic synchronization chaotic mask
Gang Zhang Li-fang He Zeng-shan Tian
College of Communication and Information Engineering CQUPT Chongqing, China
国际会议
太原
英文
418-421
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）