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Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA
Published on: October 31, 2011
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Research on Error Correction Technology in Underwater SINS/DVL Integrated Positioning and Navigation
Jian Li1,2, Mingyu Gu1, Tianlong Zhu1
1College of Internet of Things Engineering, Hohai University, Changzhou 213001, China.
Sensors (Basel, Switzerland)
|July 11, 2023
Summary
Accurate underwater navigation relies on integrated systems like Strapdown Inertial Navigation System (SINS) and Doppler Velocity Log (DVL). This study focuses on correcting DVL errors within SINS/DVL systems to improve underwater positioning accuracy.
Area of Science:
- Marine technology
- Robotics
- Navigation systems
Background:
- Underwater vehicles require precise positioning and navigation for inspection and operation tasks.
- Integrated navigation systems, commonly Strapdown Inertial Navigation System (SINS) and Doppler Velocity Log (DVL), combine multiple devices for enhanced accuracy.
- Errors in SINS/DVL integration, including installation declination and DVL measurement inaccuracies, degrade overall system performance.
Purpose of the Study:
- To investigate and address the error correction technologies for Doppler Velocity Log (DVL) within Strapdown Inertial Navigation System (SINS)/DVL integrated positioning and navigation systems.
- To enhance the accuracy and reliability of underwater navigation for critical tasks.
Main Methods:
- Focuses on the SINS/DVL integrated positioning and navigation system as the primary research subject.
- Deeply studies the error correction techniques specifically for the DVL component within the integrated system.
- Analyzes common errors such as installation declination and inherent DVL measurement errors.
Main Results:
- Identified significant impact of DVL errors on the accuracy of SINS/DVL combined positioning and navigation.
- Developed and studied error correction methodologies tailored for DVL in integrated underwater navigation.
- Demonstrated the importance of error correction for achieving reliable underwater operations.
Conclusions:
- Error correction technology is crucial for improving the performance of SINS/DVL integrated systems.
- Addressing DVL-specific errors is vital for accurate underwater positioning and navigation.
- The findings contribute to the advancement of reliable underwater inspection and operation capabilities.
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