Effective Detection Model For Passive SONAR Simulator.

This Research Note is to predict the detection range of passive sonar in different detection probability, the sonar equation is used as the logical basis. The underwater acoustic channel transmission characteristic curves are given in combination with a specific marine environment. Then, the influence of the passive sonar detection range under the typical detection probability is obtained. The study provides quantitative information for the tactical decision-making of ship commanders and provides theoretical support for the effective use of sonar equipment. The tropical littoral waters of the Indian Ocean Region (IOR) and the South China Sea (SCS) present incredibly unique challenges for any sonar operator. In the proposed Passive Sonar Simulator (PSS), we will attempt to address the challenges and opportunities of undersea deployments from an operational perspective.

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1. Sonar detection range is a crucial parameter for evaluating sonar equipment performance, especially in passive sonar systems.

2. Passive sonar’s primary function is to detect targets amidst ambient background noise and consider transmission loss related to underwater sound propagation.

3. Mathematical models, such as the passive sonar equation, transmission loss curve, low-frequency environment noise mapping, 3D mapping of radiated noise, and ROC curves, are crucial for effective sonar use. These models aid in visualizing and solving real-world problems.

4. Distinguishes between active and passive sonar technologies, where active sonar emits pulses of sound and listens for echoes, while passive sonar detects acoustic signals from external sources without emitting signals.

5. Forecasting transmission loss is critical for predicting passive sonar detection range.

Sound Speed Profile is a vital environmental parameter affecting acoustic propagation models. 6.Measurements using sound velocimeters or CTD profilers provide accurate SSP data, influencing transmission loss predictions.

7. Bathymetry, describing the seabed’s topography, is essential for understanding marine dynamics, safe navigation, and planning marine installations.