Showing 821 - 840 results of 2,327 for search '"navigation"', query time: 0.05s Refine Results
  1. 821

    PPP at Low Latitudes With Ionospheric Model Exclusively Based on Single Frequency GNSS Measurements by Ana L. Christovam, Fabricio S. Prol, Gabriel O. Jerez, Manuel Hernández‐Pajares, Paulo O. Camargo

    Published 2023-08-01
    “…Abstract Single frequency users of the Global Navigation Satellite System (GNSS) should correct the ionospheric delay to obtain positioning solutions. …”
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    Article
  2. 822
  3. 823

    In-Lane Localization and Ego-Lane Identification Method Based on Highway Lane Endpoints by Kyoungtaek Choi, Jae Kyu Suhr, Ho Gi Jung

    Published 2020-01-01
    “…The low-cost global navigation satellite systems combined with an inertial navigation system (GNSS/INS) used most frequently for vehicle localization show errors up to 10 m, approximately, even in open-sky environments such as highways. …”
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  4. 824
  5. 825

    Implementation and Realization of GNSS Signals Acquisition and Tracking Algorithm by Fuguo Xin, Rongfang Li

    Published 2014-03-01
    “…Based on the observation of frequency spectrum of navigation signal, an improved FFT acquisition algorithm was proposed which could reduce the capturing time of GNSS receiver, the threshold of the algorithm was also modified. …”
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  6. 826
  7. 827

    Stratégies pour un vol virtuel : exemple de paysages brésiliens by Alfredo Pereira de Queiroz Filho

    Published 2011-03-01
    “…This paper approaches the two main problems of the virtual flight, spatial orientation and cognitive overload, and proposes strategies to assist in its navigation. To illustrate the research, examples are used to dealing landscapes of the Brazilian territory, as Foz do Iguaçu - PR, Rio de Janeiro - RJ, Pantanal - MS, Salvador - BA, Belém - PA, Manaus - AM and São Paulo - SP…”
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    Article
  8. 828

    ANALYTICAL SYNTHESIS OF THE METHOD OF TARGETING A SUPERSONIC UNMANNED AERIAL VECHICLE BASED ON MULTI-DIMENSIONAL NONLINEAR DYNAMIC MODEL by V. E. Markevich

    Published 2017-06-01
    “…A method of analytical synthesis of an optimal controller for the terminal control task of supersonic unmanned aerial vehicles based on synergetic approach to the design of control systems for nonlinear multidimensional dynamic objects is considered.The article provides analytical expressions describing the algorithm for control the velocity vector position of a supersonic UAV, the simulation results and the comparative analysis of the proposed control algorithm with the modified method of proportional navigation.…”
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  9. 829

    D’une rive, l’autre by Brigitte Baptandier

    Published 2023-06-01
    “…Through the cult of the Lady of Linshui, Linshui furen, and the Daoist ritual tradition of the Lüshan pai, strongly tinged with Tantrism, we skirt along the boundaries between those different sociological, imaginary and symbolic spaces. A prolonged navigation (1980-2016), a point in China’s time.…”
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  10. 830

    A Social Force Model for Pedestrians’ Movements Affected by Smoke Spreading by J. Makmul

    Published 2020-01-01
    “…It is incorporated into the SF model. The navigation field in our model is determined by the negative gradient of the solution of the Eikonal equation. …”
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    Article
  11. 831

    On the scheme of delay-waiting direct rapid acquisition of very long PN code by WANG Hao, YI Da-jiang, WANG Fei-xue, ZHUANG Zhao-wen

    Published 2006-01-01
    “…A scheme of direct rapid acquisition of very long PN code that was used in satellite navigation system based on DSSS was presented.In the scheme,the delay of the local PN code was determined through estimate the clock bias between local satellite clock,and which is used to preset the match filter.The scheme was so called “delay-waiting” method.The deeply analysis on technique details and acquisition performance of the scheme is given.…”
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  12. 832

    Review of Major Hydraulic Modeling Results for Feilaixia Proje ct by XU Feng_jun, XIE Yu_feng, ZHOU Pei_ling

    Published 2001-01-01
    “…This paper summarizes a series of tests and inve stigations on general layout,const ruction diversion,flood disposal,navigation,river closure,form of gate opening s ection,pattern of energy dissipation and scouring under sluice carried out for F eilaixia Proj ect by the Scientific Research Institute of PRWRC during the period from 1983 to 1998 and presents their major results.…”
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    Article
  13. 833
  14. 834

    Bridging the Gap: Interventions to Increase Cancer Screening Adherence in Individuals with Mental Disorders—A Systematic Review by Paolo Lombardo, Ilaria Mussetto, Valentina Baccolini, Enrico Di Rosa, Alessandra Sinopoli

    Published 2025-01-01
    “…The proposed interventions included patient navigation, case management, and support from staff members along with educational modules, decision counselling sessions, and enhanced primary care. …”
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    Article
  15. 835

    Assessment and Validation of Three Ionospheric Models (IRI‐2016, NeQuick2, and IGS‐GIM) From 2002 to 2018 by Jun Chen, Xiaodong Ren, Xiaohong Zhang, Jincheng Zhang, Liangke Huang

    Published 2020-06-01
    “…In this contribution, International Global Navigation Satellite System Global Ionospheric Maps (IGSG) and two empirical models, that is, NeQuick2 and IRI‐2016, are assessed in detail by applying different assessment methods, for example, Jason2/3 ionospheric data, difference of Slant Total Electron Content (dSTEC) data derived from Global Navigation Satellite System (GNSS) phase observation, and single‐frequency precise point positioning. …”
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    Article
  16. 836

    An Effective Robust Total Least-Squares Solution Based on “Total Residuals” for Seafloor Geodetic Control Point Positioning by Zhipeng Lv, Guorui Xiao

    Published 2025-01-01
    “…Global Navigation Satellite System/Acoustic (GNSS/A) underwater positioning technology is attracting more and more attention as an important technology for building the marine Positioning, Navigation, and Timing (PNT) system. …”
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    Article
  17. 837

    Change Detection and Incremental Updates for Multi-Source Road Networks Considering Topological Consistency by Xiaodong Wang, Dongbao Zhao, Xingze Li, Nan Jia, Li Guo

    Published 2024-12-01
    “…Vector road networks are vital components of intelligent transportation systems and electronic navigation maps. There is a pressing need for efficient and rapid dynamic updates for road network data. …”
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    Article
  18. 838

    The effect of children\'s cognitive ability on ease of choosing a path in urban space(Case study of Lashkar Ghasemabad neighborhood) by shima abedi, toktam hanaee, zahra bagherzade golmakani

    Published 2024-06-01
    “…Based on the analysis of cognitive abilities in the navigation process of children, the results indicate that the elements of the guide and used in navigation are different in two age groups, and the age group of 12-14 years has an analytical mind, and in contrast to the group of 10-12 years, it is searching and Paying attention to secrecy determines the path. …”
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  19. 839

    NIGWO-iCaps NN: A Method for the Fault Diagnosis of Fiber Optic Gyroscopes Based on Capsule Neural Networks by Nan Lu, Huaqiang Zhang, Chunmei Dong, Hongtao Li, Yu Chen

    Published 2025-01-01
    “…When using a fiber optic gyroscope as the core measurement element in an inertial navigation system, its work stability and reliability directly affect the accuracy of the navigation system. …”
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  20. 840

    Markov Chain‐Based Stochastic Modeling of Deep Signal Fading: Availability Assessment of Dual‐Frequency GNSS‐Based Aviation Under Ionospheric Scintillation by Andrew K. Sun, Hyeyeon Chang, Sam Pullen, Hyosub Kil, Jiwon Seo, Y. Jade Morton, Jiyun Lee

    Published 2021-09-01
    “…Abstract Deep signal fading due to ionospheric scintillation severely impacts global navigation satellite system (GNSS)‐based applications. …”
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