Detection method of improved strongly coupled high-order Duffing-Van der Pol system for underwater acoustic signal

Key Points

• Detection of underwater acoustic signals improved significantly with a modified Duffing-Van der Pol system, enabling better signal clarity.
• Signal detection accuracy enhanced by over 30%, suggesting robustness against noise interference in acoustic environments.
• Analysis of nonlinear dynamics through simulations demonstrates efficacy in recognizing varied acoustic signals effectively.
• Findings underscore the method's potential in real-world underwater applications, although further field validation is required.