Distribution of Reference Stations: Initial Explore on the Optimal Selection Strategy

BAO Junjie; LI Rui; SHAO Bo; HUANG Zhigang

doi:10.1049/cje.2021.05.018

Volume 30 Issue 4

Jul. 2021

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Article Navigation > Chinese Journal of Electronics > 2021 > 30(4): 752-758

BAO Junjie, LI Rui, SHAO Bo, et al., “Distribution of Reference Stations: Initial Explore on the Optimal Selection Strategy,” Chinese Journal of Electronics, vol. 30, no. 4, pp. 752-758, 2021, doi: 10.1049/cje.2021.05.018

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BAO Junjie, LI Rui, SHAO Bo, et al., “Distribution of Reference Stations: Initial Explore on the Optimal Selection Strategy,” Chinese Journal of Electronics, vol. 30, no. 4, pp. 752-758, 2021, doi: 10.1049/cje.2021.05.018

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Distribution of Reference Stations: Initial Explore on the Optimal Selection Strategy

doi: 10.1049/cje.2021.05.018

1. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China;
2. The 20th Research Institute of China Electronics Technology Group Corporation, Xi'an 710000, China

Funds:

This work is supported by the National National Key Research and Development Program of China (No.2020YFB05056027).

Received Date: 2019-03-11
Available Online: 2021-07-19
Publish Date: 2021-07-05

Abstract

Abstract

The Satellite-based augmentation system (SBAS) is intended to provide real-time differential global navigation satellite system corrections with the high accuracy, availability, and integrity required for aviation applications. Since the performance of Satellite clock and ephemeris (SCE) corrections and Ionospheric range delay (IRD) corrections can vary dramatically depending on satellites and Ground reference stations (GRSs) geometry, therefore, we present a GRSs distribution optimized criteria and process to improve SBAS corrections performance. The present step-by-step optimized scheme using the average satellite surveillance dilution of precision and relative centroid metric availability of grid points as fitness values to determine the appropriate GRSs distribution to sufficiently meet the corrections requirements. The results show that the statistical mean RCM availability can reach more than 0.5518 for all IGPs and the coverage depth of GRSs in China and its surrounding areas is more than 25, which fully satisfies the requirement for solving SCE and IRD corrections.

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References(21)

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