Title :
Study on Chaotic Sequences for Spread Spectrum Communication Based on Nonlinear Digital Filters
Author :
Chen Yong ; Zhao Hangsheng ; Li Ning
Author_Institution :
Nanjing Telecommun. Technol. Inst.
Abstract :
Chaotic pseudo-noise (PN) sequences for spread spectrum (SS) communications ranks amongst the most promising applications of chaos to communications. Of special interest is the use of chaotic sequences for frequency-hopping and direct-sequences spread spectrum communications. In this paper, a chaos-based sequence generator with the multidimensional chaotic system is designed. Some modifications are introduced to the n-dimensional nonlinear digital filters in order to improve the period and distribution property of the resulted sequence. The property of chaotic sequences that are generated is similar to that of pseudo-noise sequence. Test results show that the property of chaotic sequences that are generated by the proposed generator is accordant with those in theory
Keywords :
chaos; digital filters; frequency hop communication; nonlinear filters; pseudonoise codes; spread spectrum communication; chaotic sequences; direct-sequences spread spectrum communications; frequency-hopping; multidimensional chaotic system; nonlinear digital filters; pseudo-noise sequences; spread spectrum communication; Chaotic communication; Communication system security; Cryptography; Digital filters; Eigenvalues and eigenfunctions; Frequency; Multidimensional systems; Programmable logic arrays; Spread spectrum communication; Testing;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345850
