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Related Experiment Videos

The Additional Secondary Phase Correction System for AIS Signals.

Xiaoye Wang1, Shufang Zhang2, Xiaowen Sun3

  • 1Information Science and Technology College, Dalian Maritime University, Dalian 116026, China. xywang1987@dlmu.edu.cn.

Sensors (Basel, Switzerland)
|April 1, 2017
PubMed
Summary

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This study developed a real-time correction system for Automatic Identification System (AIS) signals, improving positioning accuracy to within 10 meters by correcting for environmental factors and receiver hardware variations.

Area of Science:

  • Maritime Technology
  • Signal Processing
  • Geomatics Engineering

Background:

  • The Automatic Identification System (AIS) is crucial for maritime navigation and safety.
  • Existing AIS positioning systems face challenges due to varying hardware and environmental factors.
  • The additional secondary phase factor (ASF) is a known source of error in AIS signal processing.

Purpose of the Study:

  • To develop and implement a real-time correction system for the additional secondary phase factor (ASF) in AIS signals.
  • To analyze and verify the propagation characteristics of AIS signals at sea and the ASF real-time correction algorithm.
  • To enhance the positioning accuracy of maritime systems.

Main Methods:

  • Development of a novel ASF real-time correction system.
Keywords:
additional secondary phase factor (ASF)automatic identification system (AIS) signalcorrection systemreal-time correction

Related Experiment Videos

  • Collection and analysis of extensive test data from the developed system.
  • Verification of AIS signal propagation characteristics and the ASF correction algorithm at sea.
  • Real-time correction of positioning receiver measurements considering hardware and environmental variations.

    • Main Results:

    • The developed ASF correction system successfully processed a large volume of test data.
    • Analysis confirmed the propagation characteristics of AIS signals at sea.
    • The ASF real-time correction algorithm was validated.
    • The system achieved corrected positioning accuracy within 10 meters.

    Conclusions:

    • The developed ASF real-time correction system effectively addresses errors in AIS positioning.
    • Real-time correction significantly improves maritime positioning accuracy.
    • The system's performance is robust across different hardware and environmental conditions.