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Related Experiment Videos

A simple recursive method for stationary receiver position estimation using GPS difference measurements.

Jose I Canelon1, Robert S Provence, Leang S Shieh

  • 1Electrical Engineering School, Universidad del Zulia, Maracaibo, Zulia, Venezuela. jcanelon@luz.edu.ve

ISA Transactions
|March 17, 2007
PubMed
Summary

This study introduces a novel recursive method for Global Positioning System (GPS) receiver positioning. This technique enhances accuracy by using pseudorange measurement differences, outperforming classical approaches.

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Area of Science:

  • Geomatics Engineering
  • Satellite Navigation Systems
  • Signal Processing

Background:

  • Global Positioning System (GPS) pseudorange measurements are susceptible to various noise sources.
  • Conventional Differential GPS (DGPS) requires a fixed reference station, limiting its application.
  • Accurate stationary receiver positioning is crucial for many geodetic and navigation applications.

Purpose of the Study:

  • To present a simple recursive method for stationary GPS receiver positioning.
  • To improve positioning accuracy by utilizing the difference of pseudorange measurements.
  • To offer an alternative to DGPS that does not require a fixed station.

Main Methods:

  • A recursive algorithm is employed for position estimation.
  • The method utilizes the difference of pseudorange measurements from a single receiver.

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  • Optimal linear approximation of nonlinear pseudorange equations is applied.

    • Main Results:

    • The proposed method effectively estimates the position of a stationary receiver.
    • Using pseudorange differences mitigates the impact of noise in measurements.
    • Performance comparison demonstrates the superiority of the proposed method over classical approaches.

    Conclusions:

    • The developed recursive method offers a viable and accurate approach to stationary GPS receiver positioning.
    • The technique provides a valuable alternative to DGPS, especially in scenarios lacking a reference station.
    • The findings highlight the effectiveness of using pseudorange differences for enhanced GPS positioning accuracy.