Detection performance of chaotic spreading LPI waveforms

Jin Yu, Yu Dong Yao

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

Low probability of intercept (LPI) performance of a direct-sequence (DS) spread-spectrum (SS) system with chaotic spreading sequences is investigated in this paper. Several intercept receivers, including energy detectors, synchronous and asynchronous, coherent and noncoherent structures, which are typically used to detect binary DS SS signals, are examined here to detect the presence of chaotic DS SS signals. A simple detection approach using a binary correlating function to detect nonbinary chaotic sequences is proposed. The expressions of detection probabilities of chaotic spreading signals using those intercept receivers are derived. Comparisons between systems using chaotic and binary sequences are given in terms of the LPI performance, and the performance improvement with chaotic spreading sequences is observed.

Original languageEnglish
Pages (from-to)390-396
Number of pages7
JournalIEEE Transactions on Wireless Communications
Volume4
Issue number2
DOIs
StatePublished - Mar 2005

Keywords

  • Chaos
  • Low probability of intercept (LPI)
  • Spread spectrum (SS)

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