Results 11 to 20 of about 13,896,765 (214)
Adaptive filtering applications to satellite navigation [PDF]
, 2010 PhDDifferential Global Navigation Satellite Systems employ the extended Kalman filter to estimate the reference position error. High accuracy integrated navigation systems have the ability to mix traditional inertial sensor outputs with navigation ...
Zhahir, Md Amzari
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Precise positioning in real-time using GPS-RTK signal for visually impaired people navigation system [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 24/9/2010.This thesis presents the research carried out to investigate and achieve highly reliable and accurate navigation system of guidance for visually ...
Al-Salihi, Nawzad Kameran
core +7 more sources
Remote Sensing, 2021 With the realization of global navigation satellite system (GNSS) completion, GNSS reflectometry (GNSS-R) has become increasingly popular due to the advantages of global coverage and the availability of multiple sources in terms of earth remote sensing ...
Xiang Lan +4 more
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GNSS-IR Snow Depth Retrieval from Multi-GNSS and Multi-Frequency Data
Remote Sensing, 2021 Global navigation satellite system interferometric reflectometry (GNSS-IR) represents an extra method to detect snow depth for climate research and water cycle managing. However, using a single frequency of GNSS-IR for snow depth retrieval is often found
Jinsheng Tu +9 more
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Performance analysis of GNSS/INS loosely coupled integration systems under GNSS signal blocking environment [PDF]
E3S Web of Conferences, 2020 Global Navigation Satellite System (GNSS) and Inertial Navigation System (INS) are the most widely used navigation systems at present. Aiming at the limitations of a single system application, this paper uses kalman filter to fuse the pose information ...
Wang Mengke, Yu Peidong, Li Yunzhi
doaj +1 more source
Remote Sensing, 2021 Positioning accuracy is affected by the combined effect of user range errors and the geometric distribution of satellites. Dilution of precision (DOP) is defined as the geometric strength of visible satellites.
Haomeng Cui, Shoujian Zhang
doaj +1 more source
A novel quasi-open loop architecture for GNSS carrier recovery systems [PDF]
, 2012 The problem of designing robust systems to track global navigation satellite system (GNSS) signals in harsh environments has gained high attention. The classical closed loop architectures, such as phase locked loops, have been used for many years for ...
Letizia Lo Presti +5 more
core +3 more sources
GNSS performance modelling for high interrity aircraft applications [PDF]
, 2012 Till recently, no significant attempts have been made of developing Aircraft Based Augmentation System (ABAS) architectures capable of generating integrity signals suitable for safety-critical GNSS applications and no commercial ABAS products are ...
Shao, Liang
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The Use of Artificial Intelligence in Enhancing Navigation Safety in Case of GNSS Signal Fading or Interference [PDF]
TransNavGlobal Navigation Satellite Systems (GNSS) play a key role in modern navigation and transportation service delivery. Today it is difficult to imagine the daily operation of land, sea or air transportation without the positioning and timing provided by ...
Marcin Chrzan
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LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges
Geo-spatial Information Science, 2021 With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge +8 more
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