Results 41 to 50 of about 1,198,194 (418)
Sensors, 2020 In urban canyon environments, Global Navigation Satellite System (GNSS) satellites are heavily obstructed with frequent rise and fall and severe multi-path errors induced by signal reflection, making it difficult to acquire precise, continuous, and ...
Chuanzhen Sheng +3 more
doaj +1 more source
Sensors, 2020 The autocorrelation function (ACF) of the Binary Offset Carrier modulation (BOC) signal for Global Navigation Satellite System (GNSS) has multiple peaks, ambiguity is easily generated during the synchronization of the baseband signal.
Fang Hao +6 more
doaj +1 more source
ZUPT Aided GNSS Factor Graph with Inertial Navigation Integration for Wheeled Robots [PDF]
, 2021 In this work, we demonstrate the importance of zero velocity information for global navigation satellite system (GNSS) based navigation. The effectiveness of using the zero velocity information with zero velocity update (ZUPT) for inertial navigation applications have been shown in the literature.
arxiv +1 more source
Doppler Differential Positioning Technology Using the BDS/GPS Indoor Array Pseudolite System
Sensors, 2019 A Global Satellite Navigation System (GNSS) cannot provide normal location services in an indoor environment because the signals are blocked by buildings.
Xingli Gan +7 more
doaj +1 more source
Basic performance and future developments of BeiDou global navigation satellite system
, 2020 The core performance elements of global navigation satellite system include availability, continuity, integrity and accuracy, all of which are particularly important for the developing BeiDou global navigation satellite system (BDS-3).
Yuanxi Yang, Yue Mao, Bijiao Sun
semanticscholar +1 more source
IEEE Access, 2020 In Wi-Fi fingerprint positioning, what we should most care about is the distance relationship between the user and the reference points (RP). However, most of the existing weighted k-nearest neighbor (WKNN) algorithms use the Euclidean distance of ...
Boyuan Wang +6 more
doaj +1 more source
On Inertial Navigation and Attitude Initialization in Polar Areas [PDF]
Satellite Navigation, 2020, 2019 Inertial navigation and attitude initialization in polar areas become a hot topic in recent years in the navigation community, as the widely-used navigation mechanization of the local level frame encounters the inherent singularity when the latitude approaches 90 degrees.
arxiv +1 more source
A Non-Linear Filtering Algorithm Based on Alpha-Divergence Minimization
Sensors, 2018 A non-linear filtering algorithm based on the alpha-divergence is proposed, which uses the exponential family distribution to approximate the actual state distribution and the alpha-divergence to measure the approximation degree between the two ...
Yarong Luo +3 more
doaj +1 more source
Evaluation Methods of Satellite Navigation System Performance [PDF]
, 2019 With the development of global satellite navigation system, for example, global positioning system (GPS) and so on, some regional navigation systems and augmentation systems are developing rapidly.
He, He, Jia, Chaoying, Wang, Ershen
core +1 more source
Demand and key technology for a LEO constellation as augmentation of satellite navigation systems
Satellite NavigationA Low Earth Orbit (LEO) constellation augmenting satellite navigation is important in the future development of Global Navigation Satellite System (GNSS).
Yuanxi Yang +4 more
semanticscholar +1 more source