SMOOTHING

作品数：298被引量：618H指数：9
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Variable structure multiple model fixed-interval smoothing被引量：1
《Chinese Journal of Aeronautics》2023年第2期139-148,共10页Bolun ZHANG Yongxin GAO Zhansheng DUAN 
supported in part by the National Natural Science Foundation of China(No.61773306);the National Key Research and Development Plan,China(Nos.2021YFC2202600 and 2021YFC2202603)。
This paper focuses on fixed-interval smoothing for stochastic hybrid systems.When the truth-mode mismatch is encountered,existing smoothing methods based on fixed structure of model-set have significant performance de...
关键词：Fixed-interval smoothing Model-set adaptation Multiple model estimation Smoothing algorithm Variable structure 
Dual smoothing ionospheric gradient monitoring algorithm for dual-frequency BDS GBAS被引量：1
《Chinese Journal of Aeronautics》2020年第12期3395-3404,共10页Zhipeng WANG Yu YIN Dan SONG Kun FANG Qiang LI Xiao LI 
financial support from the National Natural Science Foundation of China(Nos.61871012,U1833125);a project from the Ministry of Industry and Information Technology(Airborne RAIM/ARAIM Technology);Open Fund Project of Intelligent Operation Key Laboratory of Civil Aviation Airport Group(No.KLAGIO20180405);the Young Top Talent Support Program of Beihang University;the Beijing Nova Program of Science and Technology(No.Z191100001119134)。
In this study,a Dual Smoothing Ionospheric Gradient Monitor Algorithm(DSIGMA)was developed for Code-Carrier Divergence(CCD)faults of dual-frequency Ground-Based Augmentation Systems(GBAS)based on the Bei Dou Navigatio...
关键词：Approach Augmentation Integrity Ionosphere-monitoring Satellite navigation Smoothing algorithms Steady state Threshold 
A new error-controllable method for smoothing the G01 commands被引量：3
《Chinese Journal of Aeronautics》2019年第7期1756-1771,共16页Min WAN Wan-Jing XING Yang LIU Qun-Bao XIAO Wei-Hong ZHANG 
supported by the National Natural Science Foundation of China under Grant Nos.51675440 and 11620101002;National Key Research and Development Program of China under Grant No.2017YFB1102800;the Fundamental Research Funds for the Central Universities under Grant No.3102018gxc025
In real machining, the tool paths are composed of a series of short line segments, which constitute groups of sharp corners correspondingly leading to geometry discontinuity in tangent. As a result, high acceleration ...
关键词：Energy approximation METHOD Error-controllable global SMOOTHING METHOD G3 CONTINUITY Local SMOOTHING METHOD Quasi-uniform quintic Bspline CURVE 
Identification and standardization of maneuvers based upon operational flight data被引量：16
《Chinese Journal of Aeronautics》2015年第1期133-140,共8页Wang Yongjun Dong Jiang Liu Xiaodong Zhang Lixin 
To find a way of loads analysis from operational flight data for advanced aircraft,maneuver identification and standardization jobs are conducted in this paper. For thousands of sorties from one aircraft, after studyi...
关键词：operational aircraft maneuver library smoothing performing attitude programmed Split conduct 
Cascade Dual Frequency Smoothing for Local Area Augmentation System被引量：6
《Chinese Journal of Aeronautics》2009年第1期49-55,共7页薛瑞 张军 朱衍波 
National Natural Science Foundation of China (60672181);National High-technology Research and Development Program (2006AA12A101)
Both temporal and spatial gradients of ionosphere errors have adverse effects upon local area augmentation system (LAAS). This article pro-poses a cascade dual frequency smoothing (CDFS) method to overcome this proble...
关键词：global positioning system IONOSPHERE measurement errors EVALUATION ESTIMATION 
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