Phase-Modulated Stepped Frequency Waveform Design for Low Probability of Detection Radar Signals

2019 ◽  
pp. 181-195
Author(s):  
R. Vignesh ◽  
G. A. Shanmugha Sundaram ◽  
R. Gandhiraj
Keyword(s):  
Waveform Design ◽  
Probability Of Detection ◽  
Low Probability ◽  
Stepped Frequency ◽  
Radar Signals

scholarly journals Analysis of Low Probability of Detection Capability for Chaotic Standard Map-Based FH-OFDMA System

2021 ◽  
Vol 11 (5) ◽  
pp. 2198
Author(s):  
Junwoo Jung ◽  
Jaesung Lim ◽  
Sungyeol Park ◽  
Haengik Kang ◽  
Seungbok Kwon
Keyword(s):  
Detection Probability ◽  
Probability Of Detection ◽  
Lower Probability ◽  
Symbol Sequence ◽  
Ofdma System ◽  
Standard Map ◽  
Detection Probabilities ◽  
Low Probability ◽  
Transmitted Symbol ◽  
Basic Symbol

A frequency hopping orthogonal frequency division multiple access (FH-OFDMA) can provide low probability of detection (LPD) and anti-jamming capabilities to users against adversary detectors. To obtain an extreme LPD capability that cannot be provided by the basic symbol-by-symbol (SBS)-based FH pattern, we proposed two FH patterns, namely chaotic standard map (CSM) and cat map for FH-OFDMA systems. In our previous work, through analysis of complexity to regenerate the transmitted symbol sequence, at the point of adversary detectors, we found that the CSM had a lower probability of intercept than the cat map and SBS. It is possible when a detector already knows symbol and frame structures, and the detector has been synchronized to the FH-OFDMA system. Unlike the previous work, here, we analyze whether the CSM provides greater LPD capability than the cat map and SBS by detection probability using spectrum sensing technique. We analyze the detection probability of the CSM and provide detection probabilities of the cat map and SBS compared to the CSM. Based on our analysis of the detection probability and numerical results, it is evident that the CSM provides greater LPD capability than both the cat map and SBS-based FH-OFDMA systems.

scholarly journals Low Probability of Detection Communication: Opportunities and Challenges

2019 ◽  
Vol 26 (5) ◽  
pp. 19-25 ◽  
Author(s):  
Shihao Yan ◽  
Xiangyun Zhou ◽  
Jinsong Hu ◽  
Stephen V. Hanly
Keyword(s):  
Probability Of Detection ◽  
Low Probability

Very low probability of detection of TiH2 molecule in a cosmic object

New Astronomy ◽  
2016 ◽  
Vol 48 ◽  
pp. 1-4 ◽  
Author(s):  
M.K. Sharma ◽  
M. Sharma ◽  
S. Chandra
Keyword(s):  
Probability Of Detection ◽  
Low Probability ◽  
Cosmic Object
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