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Using Micro-Electro-Mechanical Systems MEMS to Develop Diagnostic Tools
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Low-Cost BD/MEMS Tightly-Coupled Pedestrian Navigation Algorithm.

Tianyu Lin1, Zhenyuan Zhang2, Zengshan Tian3

  • 1Chongqing Key Lab of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China. lintianyuhit@gmail.com.

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|November 9, 2018
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Summary
This summary is machine-generated.

This study introduces a tightly-coupled BeiDou (BD) and Micro-Electro-Mechanical Systems (MEMS) integration algorithm for reliable pedestrian navigation. The new system overcomes signal degradation issues, ensuring continuous positioning outdoors.

Keywords:
BD/MEMS navigationextended Kalman filterlow costpedestrian dead reckoningtight coupling

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Area of Science:

  • Navigation Systems
  • Sensor Fusion
  • Geomatics Engineering

Background:

  • Pedestrian Dead Reckoning (PDR) using Inertial Measurement Units (IMU) and magnetometers suffers from time-dependent error accumulation, limiting long-term accuracy.
  • BeiDou (BD) navigation systems offer high precision but are susceptible to signal degradation in urban or obstructed environments.

Purpose of the Study:

  • To develop and validate a tightly-coupled BeiDou (BD) and Micro-Electro-Mechanical Systems (MEMS) integration algorithm.
  • To enhance the reliability and continuity of pedestrian positioning services, particularly in challenging environments.

Main Methods:

  • A tightly-coupled integration algorithm combining BeiDou navigation data with MEMS sensor (IMU) data was designed.
  • A prototype system was constructed to implement and test the proposed algorithm.

Main Results:

  • The integrated BD/MEMS system demonstrated robust performance across diverse environments, including open sky and foliage-rich areas.
  • Experimental results confirmed the system's ability to provide continuous and reliable outdoor positioning for pedestrians.

Conclusions:

  • The proposed tightly-coupled BD/MEMS integration algorithm effectively addresses the limitations of individual PDR and BD systems.
  • This integrated system offers a practical and reliable solution for continuous pedestrian navigation in various outdoor scenarios.