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Range estimation for forward scattering of an underwater object with experimental verification
Bo Lei1, Kunde Yang, Yuanliang Ma
1Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi'an 710072, China. lei.bo.thunder@gmail.com
The Journal of the Acoustical Society of America
|October 9, 2012
Summary
This study introduces a novel acoustic method to estimate the range of moving objects using forward scattering. The technique measures acoustic field aberrations to determine object distance, offering accurate results with known speeds.
Area of Science:
- Acoustics
- Signal Processing
- Object Detection
Background:
- Estimating the range of moving objects is crucial in various applications.
- Forward scattering phenomena can alter acoustic wave propagation.
- Acoustic field aberrations provide unique signatures of moving objects.
Purpose of the Study:
- To propose a new range estimation scheme for moving objects within forward scattering coverage.
- To utilize acoustic field aberrations caused by forward scattering for range determination.
- To validate the proposed method with experimental data.
Main Methods:
- Continuously transmitting acoustic signals to measure acoustic field aberration durations.
- Leveraging a priori knowledge of the moving object's speed.
- Applying matched filtering to observe acoustic field aberrations in experimental data.
Main Results:
- Acoustic field aberrations caused by the moving object were clearly observed.
- The proposed scheme successfully estimated the range of the moving object.
- Estimated ranges showed good agreement with the true values of the object's location.
Conclusions:
- The developed range estimation scheme based on acoustic field aberrations is effective.
- The method offers a viable approach for determining the range of moving objects in forward scattering scenarios.
- Experimental validation confirms the accuracy and reliability of the proposed technique.
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