TY - GEN
T1 - GBAS protection level calculation with GARCH model
AU - Fang, Kun
AU - Xue, Rui
AU - Zhu, Yanbo
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/8/23
Y1 - 2016/8/23
N2 - To eliminate the time correlation and model the heavy distribution tail of ground based augmentation system (GBAS) errors, a method utilizing generalized autoregressive conditional heteroscedasticity (GARCH) model is introduced in this paper. Considering the statistical uncertainty of model parameters, a strategy for using the GARCH model in nonstationary situations is proposed. Based on that, a protection level calculation framework is established with an online/offline structure to calculate error overbound and protection level in real time. As the heavy-tail errors are normalized to standard Gaussian distribution, and all the normalized errors from different satellites and elevation groups are mixed together to calculate Gaussian overbound, the Gaussian overbound is much tighter than the one calculated by classic heavy-tail errors. That leads to smaller protection levels and higher system availability.
AB - To eliminate the time correlation and model the heavy distribution tail of ground based augmentation system (GBAS) errors, a method utilizing generalized autoregressive conditional heteroscedasticity (GARCH) model is introduced in this paper. Considering the statistical uncertainty of model parameters, a strategy for using the GARCH model in nonstationary situations is proposed. Based on that, a protection level calculation framework is established with an online/offline structure to calculate error overbound and protection level in real time. As the heavy-tail errors are normalized to standard Gaussian distribution, and all the normalized errors from different satellites and elevation groups are mixed together to calculate Gaussian overbound, the Gaussian overbound is much tighter than the one calculated by classic heavy-tail errors. That leads to smaller protection levels and higher system availability.
KW - error overbound
KW - generalized autoregressive conditional heteroskedasticity (GARCH) model
KW - ground based augmentation system (GBAS)
KW - nonstationarity
KW - protection level
UR - https://www.scopus.com/pages/publications/84987985126
U2 - 10.1109/ICMAE.2016.7549614
DO - 10.1109/ICMAE.2016.7549614
M3 - 会议稿件
AN - SCOPUS:84987985126
T3 - Proceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016
SP - 622
EP - 626
BT - Proceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016
Y2 - 18 July 2016 through 20 July 2016
ER -