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GPS Continuously Operating Reference Station (CORS) selection towards regional GPS orbit determination: a simulated study using trilateration technique

Lee, Hong Sheng and Wan Aris, Wan Anom and Musa, Tajul Ariffin and Sha'ameri, Ahmad Zuri and Ooi, Wei Han and Ahmad, Anuar and Mustafar, Mohammad Asrul (2023) GPS Continuously Operating Reference Station (CORS) selection towards regional GPS orbit determination: a simulated study using trilateration technique. Jurnal Teknologi, 99 (105). pp. 99-105. ISSN 012-9696

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Official URL: http://dx.doi.org/10.11113/jurnalteknologi.v85.185...

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.

Item Type:Article
Uncontrolled Keywords:CORS selection, GPS orbit determination, regional GPS orbit determination, Satellite Position Dilution of Precision (SPDOP), simulated GPS measurement, trilateration
Subjects:G Geography. Anthropology. Recreation > G Geography (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Built Environment
ID Code:105048
Deposited By: Yanti Mohd Shah
Deposited On:02 Apr 2024 06:40
Last Modified:02 Apr 2024 06:40

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