混沌序列與多址通信
CHAOTIC SEQUENCE AND MULTIPLE ACCESS COMMUNICATIONS
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摘要: 混沌序列具有對(duì)系統(tǒng)初始條件和參數(shù)的極端敏感性。首先,本文提出了一種基于混沌序列的多址通信模型;其次,介紹了一種產(chǎn)生混沌序列的實(shí)際電路,并對(duì)多址通信進(jìn)行了分析;最后在仿真實(shí)驗(yàn)中,我們進(jìn)一步說(shuō)明了多址通信中混沌序列比M序列和Gold序列具有更好的抗干擾性和保密性。
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關(guān)鍵詞:
- 混沌序列; 多址通信; 模型; 電路
Abstract: The chaotic sequence is sensitively dependent on initial conditions and parameters of the chaotic system. This paper, firstly, presents a multiple access communications system model which is based on chaotic sequence; Secondly, introduces a chaotic circuit, and analyzes the multple access communication which is based on chaotic sequence; Finally, gives the simulation results which illustrated that chaotic sequence may become a good pseudo-random code to M sequence and gold sequence in the multiple access communications. -
Deraney R L. An Introduction to Chaotic Dynamical Systems. Califormia: Addison Wesley Publishing Company Inc., 1989, 36-46.[2]Mees A, et al. Some tools for analyzing chaos. Proc. IEEE, 1993, 175(8): 1058-1070.[3]Heidari-Beteni C, et al. A chaotic direct-sequence spread-specturm communication system. IEEE Trans on COM, 1994, COM-142(2/3/4): 1524-1527.[4]Cuomo K M, et al. Synchronization of Lorenz-based chaotic circuits with application to communication. IEEE Trans on CAS-II, 1993, 40(10): 1536-1546.[5]Carroll T L, et al. Synchronization chaotic circuits. IEEE Trans on CAS, 1991, CAS-38(4): 453-456. -
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