Results 21 to 30 of about 47,957 (238)
Sensors, 2015 The integration of the Strapdown Inertial Navigation System and Global Navigation Satellite System (SINS/GNSS) has been implemented for land-based gravimetry and has been proven to perform well in estimating gravity.
Kai-Wei Chiang +2 more
doaj +1 more source
Environmental Context Detection for Adaptive Navigation using GNSS Measurements from a Smartphone [PDF]
, 2018 The signals available for navigation depend on the environment. To operate reliably in a wide range of different environments, a navigation system is required to adopt different techniques based on the environmental contexts.
Gao, H, Groves, D
core +1 more source
Remote Sensing, 2018 Spaceborne GNSS-R (global navigation satellite system reflectometry) is an innovative and powerful bistatic radar remote sensing technique that uses specialized GNSS-R instruments on LEO (low Earth orbit) satellites to receive GNSS L-band signals ...
Fan Gao +6 more
doaj +1 more source
Preliminary Design of Monitoring and Control Subsystem for GNSS Ground Station [PDF]
Journal of Astronomy and Space Sciences, 2008 GNSS (Global Navigation Satellite System) Ground Station monitors navigation satellite signal, analyzes navigation result, and uploads correction information to satellite.
Seongkyun Jeong +4 more
doaj +1 more source
Helmert Variance Component Estimation for Multi-GNSS Relative Positioning [PDF]
, 2020 The Multi-constellation Global Navigation Satellite System (Multi-GNSS) has become the standard implementation of high accuracy positioning and navigation applications.
Fang, Zhenlong +5 more
core +2 more sources
Characterizing Power Consumption of Dual-Frequency GNSS of a Smartphone
, 2020 Location service is one of the most widely used features on a smartphone. More and more apps are built based on location services. As such, demand for accurate positioning is ever higher.
Karki, Bikram, Won, Myounggyu
core +1 more source
On the Impact of Channel Cross-Correlations in High-Sensitivity Receivers for Galileo E1 OS and GPS L1C Signals [PDF]
, 2012 One of the most promising features of the modernized global navigation satellite systems signals is the presence of pilot channels that, being data-transition free, allow for increasing the coherent integration time of the receivers.
Dovis, Fabio +2 more
core +3 more sources
ISPRS International Journal of Geo-InformationSlant range geometry plays a crucial role in interpreting synthetic aperture radar (SAR) observations, especially in converting line-of-sight (LOS) surface deformations to actual vertical subsidence. This paper proposes a new conversion model to retrieve
Jie Liu +4 more
doaj +1 more source
A Minimal Solution for Binocular Camera Relative Pose Estimation Based on the Gravity Prior
Remote SensingHigh-precision positioning is the foundation for the functionality of various intelligent agents. In complex environments, such as urban canyons, relative pose estimation using cameras is a crucial step in high-precision positioning. To take advantage of
Dezhong Chen +3 more
doaj +1 more source
A Minimal Solution Estimating the Position of Cameras with Unknown Focal Length with IMU Assistance
DronesDrones are typically built with integrated cameras and inertial measurement units (IMUs). It is crucial to achieve drone attitude control through relative pose estimation using cameras. IMU drift can be ignored over short periods.
Kang Yan +4 more
doaj +1 more source