| Citation: | XIN Pumin, WANG Zhipeng. Impact of non-nominal troposphere error on GBAS integrity[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(9): 1882-1890. doi: 10.13700/j.bh.1001-5965.2016.0665(in Chinese)
|
In current ground-based augmentation system (GBAS), the average vertical protection level(VPL) increase caused by non-nominal troposphere error is 2.29 m, the accuracy of bounding is reduced and the integrity risk is increased. Faced with the above problems, a real-time method was proposed based on the modified Hopfield model. With real-time method, the non-nominal troposphere error was calculated according to the real-time weather changes, satellite elevation angle and the distance between aircraft and ground station. Given the high requirement of the real-time method for very high frequency data broadcast(VDB) transmission bandwidth, a fitting method was proposed, in which error is a function of distance and elevation angle. Simulations compute the VPL under the flight scenarios of single point, approach area and terminal area with the aim of evaluating the impact of non-nominal troposphere error on GBAS integrity. The results show that, with the real-time bounding method, VPL is averagely increased by 1.55 m and the accuracy of bounding is increased by 32.52%; with fitting method, VPL is averagely increased by 1.27 m, the accuracy of bounding is increased by 44.54%, the VDB transmission data is less, and the GBAS integrity risk is decreased.
| [1] |
李康, 巩冠峰.GPS地基增强系统简介及其性能仿真验证[J].电光与控制, 2013, 20(8):89-94. http://www.cnki.com.cn/Article/CJFDTOTAL-DGKQ201308022.htm
LI K, GONG G F.Introduction of GPS ground based augmentation system and performance simulation[J].Electronics Optics & Control, 2013, 20(8):89-94(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-DGKQ201308022.htm
|
| [2] |
SUPARTA W.Tropospheric modeling from GPS[M]//SUPARTA W, ALHASA K M.Modeling of tropospheric delays using ANFIS.Berlin:Springer International Publishing, 2016:19-52.
|
| [3] |
DIGGLE D W.An investigation into the use of satellite-based positioning systems for flight reference/autoland operations, dissertation[D].Columbus:Ohio University, 1994:2-17. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1173978322
|
| [4] |
VAN GRAAS F, KRISHNAN V, SUDDAPALLI R, et al.Conspiring biases in the LAAS[C]//Proceedings of the Annual Meeting-Institute of Navigation.Manassas, VA:ION, 2004:300-307.
|
| [5] |
HUANG J, VAN GRAAS F.Comparison of tropospheric decorrelation errors in the presence of sever weather conditions in different areas and over different baseline lengths[J].Navigation, 2007, 54(3):207-226. doi: 10.1002/navi.2007.54.issue-3
|
| [6] |
HUANG J, VAN GRAAS F, COHENOUR C.Characterization of tropospheric spatial decorrelation errors over a 5-km baseline[J].Navigation, 2008, 55(1):39-53. doi: 10.1002/navi.2008.55.issue-1
|
| [7] |
VAN GRAAS F, ZHU Z.Tropospheric delay threats for the GBAS[C]//Proceedings of the International Technical Meeting of the Institute of Navigation.Manassas, VA:ION, 2011:959-964.
|
| [8] |
MATEUS P, NICO G, TOME R, et al.Experimental study on the atmospheric delay based on GPS, SAR interferometry, and numerical weather model data[J].IEEE Transactions on Geoscience & Remote Sensing, 2013, 51(1):6-11. http://ieeexplore.ieee.org/document/6247501/
|
| [9] |
GUILBERT A.Non-nominal troposphere reassessment for meeting CAT Ⅱ/Ⅲ with MC/MF GBAS[C]//Proceedings of the 28th International Technical Meeting of the Satellite Division of the Institute of Navigation.Manassas, VA:ION, 2015:1526-1537.
|
| [10] |
RTCA Inc.Minimum operational performance standards for GPS local area augmentation system airborne equipment:RTCA D0-253C-08[S].Washington, D.C.:RTCA, 2008:52. http://citeseer.uark.edu:8080/citeseerx/showciting;jsessionid=80FB1274FB7F1942290A0E9B45B1FB62?cid=8670408
|
| [11] |
NILSSON T, BÖHM J, WIJAYA D D, et al.Atmospheric effects in space geodesy[M].Berlin:Springer, 2013:73-136.
|
| [12] |
SKIDMORE T, VAN GRASS F.An investigation of troposphere errors on differential GNSS accuracy and integrity[C]//Proceedings of International Technical Meeting of the Satellite Division of the Institute of Navigation.Manassas, VA:ION, 2004:2752-2760.
|
| [13] |
RIFE J, PULLEN S.The impact of measurement biases on availability for CAT Ⅲ LAAS[J].Navigation, 2006, 52(4):215-228. doi: 10.1002/j.2161-4296.2005.tb00364.x/abstract
|
| [14] |
SEO J, LEE J, PULLEN S, et al.Targeted parameter inflation within GBAS to minimize anomalous ionospheric impact[J].Journal of Aircraft, 2012, 49(2):587-588. doi: 10.2514/1.C031601
|
| [15] |
李亮, 赵琳, 丁继成, 等.提高LAAS空间信号可用性的完好性监测新膨胀算法[J].航空学报, 2011, 32(4):664-671. http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201104011.htm
LI L, ZHAO L, DING J C, et al. A new inflation integrity monitoring algorithm for improving availability of LAAS signal-in-space[J].Acta Aeronautica et Astronautica Sinica, 2011, 32(4):664-671(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201104011.htm
|
| [16] |
LEE J, PULLEN S, XIE G, et al.LAAS sigma-mean monitor analysis and failure-test verification[C]//Proceedings of Annual Meeting of the Institute of Navigation.Manassas, VA:ION, 2010:694-704.
|
| [17] |
ICAO NSP.GBAS CAT Ⅱ/Ⅲ development baseline SARP:Annex 10, Volume Ⅰ[R].Montreal:International Civil Aviation Organization, 2010.
|
Figures(12) / Tables(6)
Copyright © Journal of Beijing University of Aeronautics and Astronautics
Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn
Supported by:
Beijing Renhe Information Technology Co., Ltd.
DownLoad:
