DocumentCode :
757570
Title :
Detection performance of chaotic spreading LPI waveforms
Author :
Yu, Jin ; Yao, Yu-Dong
Author_Institution :
Dept. of Electr. & Comput. Eng., Stevens Inst. of Technol., Hoboken, NJ, USA
Volume :
4
Issue :
2
fYear :
2005
fDate :
3/1/2005 12:00:00 AM
Firstpage :
390
Lastpage :
396
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.
Keywords :
binary sequences; chaotic communication; probability; radio receivers; signal detection; spread spectrum communication; asynchronous structure; binary correlating function; binary sequence; chaotic spreading LPI waveform; chaotic spreading sequence; coherent structure; direct-sequence spread-spectrum system; energy detector; intercept receiver; low probability of intercept; noncoherent structure; signal detection approach; synchronous structure; Binary sequences; Chaos; Chaotic communication; Detectors; Performance analysis; Radio frequency; Radio transmitters; Signal analysis; Signal detection; Spread spectrum communication; Chaos; low probability of intercept (LPI); spread spectrum (SS);
fLanguage :
English
Journal_Title :
Wireless Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1276
Type :
jour
DOI :
10.1109/TWC.2004.842948
Filename :
1413205
Link To Document :
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