Results 1 to 10 of about 15,952 (266)

RELIABILITY OF THE GPS CARRIER-PHASE FIX SOLUTION UNDER HARSH CONDITION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Once the unknown integer ambiguity values are resolved, the GPS carrier phase observation will be transformed into a millimeter-level precision measurement. However, GPS observation are prone to a variety of errors, making it a biased measurement.
M. I. Mohd Dzukhi   +5 more
doaj   +1 more source

Integer coordinates for intrinsic geometry processing [PDF]

open access: yesACM Transactions on Graphics, 2021
This paper describes a numerically robust data structure for encoding intrinsic triangulations of polyhedral surfaces. Many applications demand a correspondence between the intrinsic triangulation and the input surface, but existing data structures either rely on floating point values to encode correspondence, or do not support remeshing ...
Gillespie, Mark   +2 more
openaire   +2 more sources

A Novel Robust Approach for Computing DE-9IM Matrices Based on Space Partition and Integer Coordinates

open access: yesISPRS International Journal of Geo-Information, 2021
A novel approach for a robust computation of positional relations of two-dimensional geometric features is presented which guarantees reliable results, provided that the initial data is valid.
Enrico Romanschek   +2 more
doaj   +1 more source

Discrete Optimization: The Case of Generalized BCC Lattice

open access: yesMathematics, 2021
Recently, operations research, especially linear integer-programming, is used in various grids to find optimal paths and, based on that, digital distance.
Gergely Kovács   +4 more
doaj   +1 more source

Integer Polar Coordinates for Compression [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
This paper introduces a family of integer-to-integer approximations to the Cartesian-to-polar coordinate transformation and analyzes its application to lossy compression. A high-rate analysis is provided for an encoder that first uniformly scalar quantizes, then transforms to "integer polar coordinates," and finally separately entropy codes angle and ...
Demba E. Ba, Vivek K Goyal
openaire   +1 more source

Integer Ambiguity Parameter Identification for Fast Satellite Positioning and Navigation Based on LAMBDA-GWO with Tikhonov Regularization

open access: yesApplied Sciences, 2023
Satellite positioning is one of the main navigation technologies in unmanned aerial vehicles (UAVs), the accuracy of which has an important impact on the safety, stability, and flexibility of UAVs.
Guanbin Gao, Le Li, Qinghua Shi, Pei Xie
doaj   +1 more source

Antenna Array-Aided Real-Time Kinematic Using Moving Base Stations

open access: yesIEEE Access, 2022
A global navigation satellite systems (GNSS) real-time kinematic (RTK) using multiple base stations is referred as an antenna array-aided RTK. This positioning method more reliably resolves carrier phase integer ambiguities by processing additional ...
Euiho Kim, Sae-Kyeol Kim
doaj   +1 more source

Towards Lagrangian construction for infinite half-integer spin field

open access: yesNuclear Physics B, 2020
We formulate the conditions for the generalized fields in the space with additional commuting Weyl spinor coordinates which define the infinite half-integer spin representation of the four-dimensional Poincaré group. Using this formulation we develop the
I.L. Buchbinder   +3 more
doaj   +1 more source

Semi-parametric Adjustment Model Methods for Positioning of Seafloor Control Point [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2020
This paper focus on solving the problem of seafloor control point absolute positioning with low vertical accuracy based on the survey ship sailing circle.
Wenzhou SUN,Xiaodong YIN,Jingyang BAO,Anmin ZENG
doaj   +1 more source

FAST AND REGULARIZED RECONSTRUCTION OF BUILDING FAÇADES FROM STREET-VIEW IMAGES USING BINARY INTEGER PROGRAMMING [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Regularized arrangement of primitives on building façades to aligned locations and consistent sizes is important towards structured reconstruction of urban environment.
H. Hu   +6 more
doaj   +1 more source

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