Weighted Total Least Squares (WTLS) Solutions for Straight Line Fitting to 3D Point Data [PDF]
Mathematics, 2020 In this contribution the fitting of a straight line to 3D point data is considered, with Cartesian coordinates xi, yi, zi as observations subject to random errors.
Georgios Malissiovas +3 more
doaj +7 more sources
A New Gain-Phase Error Pre-Calibration Method for Uniform Linear Arrays [PDF]
Sensors, 2023 In this paper, we consider the gain-phase error calibration problem for uniform linear arrays (ULAs). Based on the adaptive antenna nulling technique, a new gain-phase error pre-calibration method is proposed, requiring only one calibration source with ...
Chang Liu, Xiao Tang, Zhi Zhang
doaj +2 more sources
An Efficient Algorithm for Infrared Earth Sensor with a Large Field of View [PDF]
Sensors, 2022 Infrared Earth sensors with large-field-of-view (FOV) cameras are widely used in low-Earth-orbit satellites. To improve the accuracy and speed of Earth sensors, an algorithm based on modified random sample consensus (RANSAC) and weighted total least ...
Bendong Wang, Hao Wang, Zhonghe Jin
doaj +2 more sources
Testing straightness of line objects using total least squares [PDF]
Tehnika, 2017 The paper presents the adaptation (fitting) of a set of points, with an estimated two-dimensional positions, to the straight line model of the by the application of the Weighted Total Least Squares, WTLS.
Popović Jovan +4 more
doaj +5 more sources
A Fast and On-Machine Measuring System Using the Laser Displacement Sensor for the Contour Parameters of the Drill Pipe Thread [PDF]
Sensors, 2018 The inconvenient loading and unloading of a long and heavy drill pipe gives rise to the difficulty in measuring the contour parameters of its threads at both ends.
Zhixu Dong +3 more
doaj +2 more sources
Robust denoising-oriented point cloud plane fitting method based on a combined model of improved Cook’s distance and WTLS [PDF]
Journal of Intelligent Manufacturing and Special Equipment, 2022 Purpose – In order to improve the robustness to noise in point cloud plane fitting, a combined model of improved Cook’s distance (ICOOK) and WTLS is proposed by setting a modified Cook’s increment, which could help adaptively remove the noise points that
Chongjun Wu +3 more
doaj +1 more source
A Recursive Restricted Total Least-squares Algorithm [PDF]
, 2014 International audienceWe show that the generalized total least squares (GTLS) problem with a singular noise covariance matrix is equivalent to the restricted total least squares (RTLS) problem and propose a recursive method for its numerical solution ...
Gauterin, Frank +3 more
core +7 more sources
WTLS iterative algorithm of 3D similarity coordinate transformation based on Gibbs vectors
Earth, Planets and Space, 2020 The 3D similarity coordinate transformation is fundamental and frequently encountered in many areas of work such as geodesy, engineering surveying, LIDAR, terrestrial laser scanning, photogrammetry, machine vision, etc.
Huaien Zeng +3 more
doaj +1 more source
RSS-based sensor localization with unknown transmit power [PDF]
, 2011 Received signal strength (RSS)-based single source localization when there is not a prior knowledge about the transmit power of the source is investigated.
Gholami, Mohammad Reza +2 more
core +1 more source
Soil radium, soil gas radon and indoor radon empirical relationships to assist in post-closure impact assessment related to near-surface radioactive waste disposal [PDF]
, 2009 Least squares (LS), Theil’s (TS) and weighted total least squares (WTLS) regression analysis methods are used to develop empirical relationships between radium in the ground, radon in soil and radon in dwellings to assist in the post-closure assessment ...
J.D. Appleton +32 more
core +4 more sources