Executive Summary
This thesis numerically analyzes the influence of various environmental scenarios on shallow water bottom interface and volume reverberation. It uses the Monterey-Miami Parabolic Equation (MMPE) model with broadband pulse signals to study sound speed profiles, bottom interface roughness, and volume fluctuations. The study aims to characterize reverberation in littoral regions, particularly the East China Sea, for improved active sonar performance.
Why It Matters
This document is crucial for defense analysts as it details the environmental factors affecting active sonar performance in shallow water, a critical operational environment for modern naval forces. Understanding reverberation helps in developing more effective anti-submarine warfare and mine countermeasures.
Key Takeaways
- Environmental factors like sound speed profiles, bottom roughness, and volume fluctuations significantly impact shallow water reverberation.
- The MMPE model is used to simulate complex reverberation structures for broadband pulse signals, providing insights into acoustic propagation.
- Accurate characterization of shallow water reverberation is essential for enhancing active sonar systems in littoral regions.
Strategic Relevance
Understanding and predicting shallow water bottom reverberation is strategically important for naval operations in littoral zones. It directly impacts the effectiveness of active sonar systems used for submarine detection, mine warfare, and acoustic communications, thereby influencing tactical advantages and operational planning in contested coastal environments.