Results 81 to 90 of about 1,326,430 (386)
Kinematic Precise Point Positioning Performance-Based Cost-Effective Robot Localization System
Applied Sciences, 2023 The use of high-precision positioning systems in modern navigation applications is crucial since location data is one of the most important pieces of information in Industry 4.0, especially for robots operating outdoors.
Ashraf Farah, Mehdi Tlija
doaj +1 more source
EipFormer: Emphasizing Instance Positions in 3D Instance Segmentation [PDF]
arXiv, 2023 3D instance segmentation plays a crucial role in comprehending 3D scenes. Despite recent advancements in this field, existing approaches exhibit certain limitations. These methods often rely on fixed instance positions obtained from sampled representative points in vast 3D point clouds, using center prediction or farthest point sampling. However, these
arxiv
ECEF Position Accuracy and Reliability: Inertial Navigation with GNSS Precise Point Positioning (PPP) [PDF]
, 2020 This report presents experimental results for a moving platform using GPS PPP data for state estimation. Results from two PPP GPS state estimation approaches are presented: point-wise least squares (LS) and aided inertial navigation (INS). The point-wise
Farrell, Jay A. +2 more
core
Positioning with stationary emitters in a two-dimensional space-time [PDF]
, 2006 The basic elements of the relativistic positioning systems in a two-dimensional space-time have been introduced in a previous work [Phys. Rev. D {\bf 73}, 084017 (2006)] where geodesic positioning systems, constituted by two geodesic emitters, have been ...
B. Coll +6 more
core +3 more sources
Performance Evaluation of Different GNSS Positioning Modes [PDF]
, 2022 This paper gives a comparison of different GPS positioning modes using RTKLIB which is free and open-source software. The modes tested in this work are Single point positioning (SPP), precise point positioning (PPP), Satellite-based augmentation system ...
Beldjilali, Bilal +2 more
core +2 more sources
GPS AND GLONASS COMBINED STATIC PRECISE POINT POSITIONING (PPP) [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 With the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs), satellite navigation is undergoing drastic changes. Presently, more than 70 satellites are already available and nearly 120 more satellites will be available ...
D. Pandey +3 more
doaj +1 more source
Low-Precision Mixed-Computation Models for Inference on Edge [PDF]
arXiv, 2023 This paper presents a mixed-computation neural network processing approach for edge applications that incorporates low-precision (low-width) Posit and low-precision fixed point (FixP) number systems. This mixed-computation approach employs 4-bit Posit (Posit4), which has higher precision around zero, for representing weights with high sensitivity ...
arxiv
Journal of Geodesy, 2021 Ionospheric scintillation refers to rapid and random fluctuations in radio frequency signal intensity and phase, which occurs more frequently and severely at high latitudes under strong solar and geomagnetic activity. As one of the most challenging error
K. Guo +3 more
semanticscholar +1 more source
An assessment of the precise products on static Precise Point Positioning using Multi-Constellation GNSS [PDF]
, 2018 Precise point positioning (PPP) is highly dependent on the precise ephemerides and satellite clock products that are used. Different ephemeris and clock products are available from a variety of different organizations.
Bingley, R.M. +3 more
core +1 more source
Positioning performance analysis on combined GPS/BDS precise point positioning
Geodesy and Geodynamics, 2020 Combining the observation data from five Multi-GNSS Experiment (MGEX) stations with the precise orbit and clock products from Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS), we studied the model of combined GPS/BDS precise ...
Jing Xiong, Fei Han
doaj