GPS CONTINUOUSLY OPERATING REFERENCE STATION (CORS) SELECTION TOWARDS REGIONAL GPS ORBIT DETERMINATION: A SIMULATED STUDY USING TRILATERATION TECHNIQUE

Authors

  • Hong Sheng Lee Geomatic Innovation Research Group, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia https://orcid.org/0000-0003-4172-2985
  • Wan Anom Wan Aris Geomatic Innovation Research Group, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Tajul Ariffin Musa Geomatic Innovation Research Group, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Ahmad Zuri Sha'ameri School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia https://orcid.org/0000-0002-3888-226X
  • Wei Han Ooi Malaysia Space Agency (MYSA), Jalan Turi, Kompleks Teknologi Angkasa, 42700 Banting, Selangor, Malaysia https://orcid.org/0000-0003-2444-3415
  • Anuar Ahmad Geomatic Innovation Research Group, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohammad Asrul Mustafar Kolej Pengajian Alam Bina, Universiti Teknologi MARA, Perlis Branch, Arau Campus, 02600 Arau, Perlis, Malaysia

DOI:

https://doi.org/10.11113/jurnalteknologi.v85.18541

Keywords:

GPS orbit determination, regional GPS orbit determination, Satellite Position Dilution of Precision (SPDOP), trilateration, simulated GPS measurement, CORS selection

Abstract

Global Positioning System (GPS) orbital error can be minimized using precise satellite orbit. These precise satellite orbits are calculated using GPS measurements from ground CORS. The distribution of the CORS involved in GPS satellite orbit determination is important, especially in the case of regional GPS orbit determination. A regional GPS orbit is an orbital product generated using locally distributed CORS network and is expected to improve the GPS measurement in the region. Satellite Position Dilution of Precision (SPDOP) is proposed as an indicator to measure the geometry of the CORS with respect to the GPS satellite. GPS measurements are simulated by calculating the range from GPS satellites to the CORS. The simulated measurement is then used to calculate the position of GPS satellite using trilateration algorithm. Results shows the SPDOP has a linear relationship with orbit determination accuracy. This study shows that SPDOP can be used as an indicator for a better CORS selection in GPS orbit determination.

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Published

2022-12-02

How to Cite

Lee, H. S., Wan Aris, W. A., Musa, T. A., Sha’ameri, A. Z., Ooi, W. H., Ahmad, A., & Mustafar, M. A. . (2022). GPS CONTINUOUSLY OPERATING REFERENCE STATION (CORS) SELECTION TOWARDS REGIONAL GPS ORBIT DETERMINATION: A SIMULATED STUDY USING TRILATERATION TECHNIQUE . Jurnal Teknologi, 85(1), 99-105. https://doi.org/10.11113/jurnalteknologi.v85.18541

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Section

Science and Engineering