Active Electro-Location of Objects in the Underwater Environment Based on the Mixed Polarization Multiple Signal...

Area of Science:

• Underwater acoustics
• Electromagnetics
• Signal processing

Background:

• Accurate underwater target localization is crucial for various applications.
• Existing methods face challenges in complex underwater environments.

Purpose of the Study:

• To propose a novel active localization method for underwater targets.
• To accurately position metal or insulator targets using a uniform circular antenna (UCA).

Main Methods:

• Utilizing the mixed polarization multiple signal classification (MP-MUSIC) algorithm.
• Employing the boundary element method (BEM) for target boundary analysis.
• Using an electric dipole source and UCA to receive the target's induction field.

Main Results:

• The proposed method demonstrated accurate positioning performance in simulations and physical experiments.
• Spatial-temporal localization data derived from UCA electrode potentials simplifies implementation.
• Eliminates the need for direct measurement of field components in each direction.

Conclusions:

• The developed active localization method is effective for underwater target locating.
• The integration of MP-MUSIC and BEM offers a robust solution for underwater positioning.
• The method is suitable for practical engineering applications due to its simplified implementation.