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Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
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To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
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Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
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A Positioning Error Compensation Method for a Mobile Measurement System Based on Plane Control.

Bo Shi1, Fan Zhang1, Fanlin Yang1

  • 1College of Geomatics, Shandong University of Science and Technology, Qingdao 266000, China.

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PubMed
Summary
This summary is machine-generated.

This study introduces a novel plane control method to compensate for Global Navigation Satellite System (GNSS)/Inertial Navigation System (INS) positioning errors caused by signal loss in urban environments. The method significantly improves laser point cloud accuracy, enhancing mobile measurement systems.

Keywords:
Gaussian modellaser point cloudplane featureposition and orientation

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Area of Science:

  • Geomatics Engineering
  • Robotics and Autonomous Systems
  • Geospatial Positioning

Background:

  • Mobile measurement systems rely on Global Navigation Satellite System (GNSS)/Inertial Navigation System (INS) for real-time geo-referenced data.
  • Urban environments with tall buildings obstruct GNSS signals, leading to signal loss-of-lock.
  • Inertial Navigation System (INS) errors accumulate rapidly during GNSS signal outages, compromising navigation accuracy.

Purpose of the Study:

  • To develop a positioning error compensation method for GNSS/INS navigation in urban environments.
  • To address the challenges posed by GNSS signal loss-of-lock and its impact on mobile measurement systems.
  • To improve the accuracy and reliability of laser point cloud data acquired during GNSS outages.

Main Methods:

  • Proposed a positioning error compensation method based on plane control analysis.
  • Utilized planar features and laser point cloud positioning equations to create an adjustment model.
  • Developed a strategy to identify and compensate for positioning errors during GNSS signal loss periods.

Main Results:

  • Experimental results demonstrated a significant improvement in the accuracy of compensated laser point cloud data.
  • The proposed method effectively mitigated positioning errors caused by GNSS signal loss-of-lock.
  • Feasibility and adaptability of the plane control method were verified through experiments.

Conclusions:

  • The developed plane control method offers a viable solution for enhancing GNSS/INS navigation accuracy in urban settings.
  • The method's reliance on existing building planes makes it adaptable and easy to implement in real-world applications.
  • This approach contributes to more reliable mobile measurement systems in challenging GNSS-denied environments.