Performance of chaos-based digital communication systems in the presence of a pulsed-noise jammer

Chung Ming Lau, Chi Kong Tse

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


Chaos-based communication systems are known to offer advantages that are shared by spread-spectrum communications. One important aspect of the performance of any spread-spectrum communication system is the ability to resist jamming. In this paper, an analysis of the antijamming performance of a coherent chaos shift keying system under the influence of a common pulsed-noise jammer is presented. Two types of pulsed-noise jammers, slowly switching and fast switching jammers, are considered in our studies. The performance is evaluated in terms of the bit error rate (BER) under different levels of noise power, jamming power, spreading factor, and duty factor. The maximum (worst-case) BERs are also obtained analytically for the case where the jammer is slowly switching. Computer simulations are performed to verify the analytical results. Finally, the BERs are compared with those of a conventional direct-sequence spread-spectrum communication system.
Original languageEnglish
Pages (from-to)169-194
Number of pages26
JournalCircuits, Systems, and Signal Processing
Issue number3
Publication statusPublished - 1 May 2004


  • Chaos-based communications
  • Pulsed-noise jammer
  • Spread-spectrum communications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing


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