The frequency characteristic of chaotic synchronization systems and weak signal detection

1997 ◽  
Vol 40 (5) ◽  
pp. 472-478 ◽  
Author(s):  
Liuqing Pei ◽  
Jinyu Kuang ◽  
Yuan Shao
Keyword(s):  
Signal Detection ◽  
Frequency Characteristic ◽  
Chaotic Synchronization ◽  
Weak Signal ◽  
Weak Signal Detection

Application Research of Chaos Synchronization in Detecting Weak Signal

2011 ◽  
Vol 271-273 ◽  
pp. 581-585
Author(s):  
Dan Hui Wu
Keyword(s):  
Signal Detection ◽  
Chaos Synchronization ◽  
Chaotic Synchronization ◽  
Weak Signal ◽  
Weak Signal Detection ◽  
Application Research ◽  
Basic Form ◽  
Critical Problems ◽  
New System ◽  
Key Questions

The basic form of Duffing equation is firstly analyzed in this paper; and then, it describes the principle of weak signal detection based on the change of phase trace. In view of some key questions existing in weak signal detection based on chaos, a new system is put forward, which detects weak signal utilizing chaotic synchronization characteristics. Utilizing the system, the critical problems of existing in weak signal detection based on chaos can be solved, and that, a imitation experiment validates the project, as a result, the research in the paper provides the foundation of putting chaotic synchronization into practice application to weak signal detection.

Lateral growth of indium(III) selenide nanoribbons and their optoelectronic performance for weak signal detection

2021 ◽  
Vol 546 ◽  
pp. 149166
Author(s):  
Haibo Gan ◽  
Jidong Liu ◽  
Qiaoyan Hao ◽  
Di Wu ◽  
Peng Li ◽  
...  
Keyword(s):  
Signal Detection ◽  
Weak Signal ◽  
Lateral Growth ◽  
Weak Signal Detection

Weak Signal Detection in Underwater Acoustic Based on Time-Series Characteristic

2011 ◽  
Vol 216 ◽  
pp. 548-552
Author(s):  
Hai Ping Wu ◽  
Shi Jian Zhu ◽  
Jing Jun Lou ◽  
Li Yang Yu
Keyword(s):  
Time Series ◽  
Signal Detection ◽  
Matched Filter ◽  
Doppler Frequency ◽  
High Dimensional ◽  
Filter Method ◽  
Weak Signal ◽  
Weak Signal Detection ◽  
Underwater Acoustic ◽  
Radar Echo

For limitation of the matched filter method in underwater acoustic detection,a method of underwater acoustic weak signal detection based on time series characteristic quantity is proposed．Chaotic waveforms, which have thumbtack type ambiguity function, is selected as the waveform of active sonar in the situation of High Dynamic Doppler Frequency Shift. According to the change of correlation dimension while chaotic radar echo appears in the chaotic background, chaotic radar echo is checked out by the means of simulation in the situation of high dimensional chaotic background and low dimensional chaotic background．The method proves out in high dimensional chaotic background．

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