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https://doi.org/10.17559/TV-20150825113651

A Weak Signal Detection Application Based on Hyperchaotic Lorenz System

Abdullah Gokyildirim ; Sakarya University, Esentepe, Campus 54187 Serdivan, Sakarya, Turkey
Yilmaz Uyaroglu ; Sakarya University, Esentepe, Campus 54187 Serdivan, Sakarya, Turkey
Ihsan Pehlivan ; Sakarya University, Esentepe, Campus 54187 Serdivan, Sakarya, Turkey

Puni tekst: engleski, pdf (2 MB) str. 701-708 preuzimanja: 217* citiraj
APA 6th Edition
Gokyildirim, A., Uyaroglu, Y. i Pehlivan, I. (2018). A Weak Signal Detection Application Based on Hyperchaotic Lorenz System. Tehnički vjesnik, 25 (3), 701-708. https://doi.org/10.17559/TV-20150825113651
MLA 8th Edition
Gokyildirim, Abdullah, et al. "A Weak Signal Detection Application Based on Hyperchaotic Lorenz System." Tehnički vjesnik, vol. 25, br. 3, 2018, str. 701-708. https://doi.org/10.17559/TV-20150825113651. Citirano 14.11.2019.
Chicago 17th Edition
Gokyildirim, Abdullah, Yilmaz Uyaroglu i Ihsan Pehlivan. "A Weak Signal Detection Application Based on Hyperchaotic Lorenz System." Tehnički vjesnik 25, br. 3 (2018): 701-708. https://doi.org/10.17559/TV-20150825113651
Harvard
Gokyildirim, A., Uyaroglu, Y., i Pehlivan, I. (2018). 'A Weak Signal Detection Application Based on Hyperchaotic Lorenz System', Tehnički vjesnik, 25(3), str. 701-708. https://doi.org/10.17559/TV-20150825113651
Vancouver
Gokyildirim A, Uyaroglu Y, Pehlivan I. A Weak Signal Detection Application Based on Hyperchaotic Lorenz System. Tehnički vjesnik [Internet]. 2018 [pristupljeno 14.11.2019.];25(3):701-708. https://doi.org/10.17559/TV-20150825113651
IEEE
A. Gokyildirim, Y. Uyaroglu i I. Pehlivan, "A Weak Signal Detection Application Based on Hyperchaotic Lorenz System", Tehnički vjesnik, vol.25, br. 3, str. 701-708, 2018. [Online]. https://doi.org/10.17559/TV-20150825113651

Sažetak
Due to accurate capability to detect weak signal, chaotic oscillators have become an interesting topic for many scientific researches. In this paper, two hyperchaotic Lorenz systems are presented to detect weak signal. These systems are chosen because of their parametric variety and high applicability. Dynamic behaviors of two hyperchaotic systems are analysed in detail. For this purpose, the Lyapunov exponent values and bifurcation behaviours of two hyperchaotic systems are analysed for weak signal detection applications. The relationship between the system state and the amplitude of the weak signal is defined by examining the Lyapunov exponents of the system. So, dynamic characteristics of two chaotic oscillators are observed by this way. The critical chaotic parametric threshold value of a chaotic system is easily determined by the bifurcation analysis. The bifurcation threshold value named as tangent bifurcation point is the most suitable one to detect weak signal. For this purpose, the tangent bifurcation points of these systems are determined via bifurcation analysis. Additionally, weak signal detection applications of two hyperchaotic systems are also studied. The applicability of the proposed systems is shown by these applications. These systems also detect the weak signal with low signal to noise ratio (SNR). Simulation results obtained from Matlab-Simulink® program verify the studied method.

Ključne riječi
bifurcation; chaotic systems; hyperchaos; Lyapunov method; signal to noise ratio; weak signal detection

Hrčak ID: 202579

URI
https://hrcak.srce.hr/202579

Posjeta: 367 *