Results 11 to 20 of about 61,800 (289)

Short-Arc Horizon-Based Optical Navigation by Total Least-Squares Estimation

open access: yesAerospace, 2023
Horizon-based optical navigation (OPNAV) is an attractive solution for deep space exploration missions, with strong autonomy and high accuracy. In some scenarios, especially those with large variations in spacecraft distance from celestial bodies, the ...
Huajian Deng   +3 more
doaj   +2 more sources

Comparison between total least squares and ordinary least squares in obtaining the linear relationship between stable water isotopes

open access: yesGeoscience Letters, 2022
The linear relationship between two stable water isotopes (δD and δ18O) has been used to examine the physical processes and movements or changes of three water phases (water vapor, liquid water and ice), including deuterium excess.
Jeonghoon Lee   +3 more
doaj   +2 more sources

Total Least Squares Estimation in Hedonic House Price Models

open access: yesISPRS International Journal of Geo-Information
In real estate valuation using the Hedonic Price Model (HPM) estimated via Ordinary Least Squares (OLS) regression, subjectivity and measurement errors in the independent variables violate the Gauss–Markov theorem assumption of a non-random coefficient ...
Wenxi Zhan   +5 more
doaj   +2 more sources

An Effective Robust Total Least-Squares Solution Based on “Total Residuals” for Seafloor Geodetic Control Point Positioning

open access: yesRemote Sensing
Global Navigation Satellite System/Acoustic (GNSS/A) underwater positioning technology is attracting more and more attention as an important technology for building the marine Positioning, Navigation, and Timing (PNT) system.
Zhipeng Lv, Guorui Xiao
doaj   +2 more sources

Design and Research of Low-Cost and Self-Adaptive Terrestrial Laser Scanning for Indoor Measurement Based on Adaptive Indoor Measurement Scanning Strategy and Structural Characteristics Point Cloud Segmentation

open access: yesAdvances in Civil Engineering, 2022
Nowadays, TLS (terrestrial laser scanning) has been a relatively mature measuring equipment categorized to indoor measuring robots, but it is not widely adopted in indoor construction measurement at present.
Zhongyue Zhang   +4 more
doaj   +1 more source

A Polynomial Fitting Problem: The Orthogonal Distances Method

open access: yesMathematics, 2022
The classical curve-fitting problem to relate two variables, x and y, deals with polynomials. Generally, this problem is solved by the least squares method (LS), where the minimization function considers the vertical errors from the data points to the ...
Luis Alberto Cantera-Cantera   +4 more
doaj   +1 more source

Performance evaluation of the Ordinary Least Square (OLS) and Total Least Square (TLS) in adjusting field data: an empirical study on a DGPS data [PDF]

open access: yesSouth African Journal of Geomatics, 2017
Survey measurements have become the traditional means of obtaining point positions by most surveyors over the centuries. The assertion that a post processed DGPS field data is precise, accurate and can be used to execute any engineering works due to its minimum human errors need to be reviewed; this is because the post processed field data still ...
Peprah, M.S., Mensah, I.O.
openaire   +2 more sources

Quantum-inspired algorithm for truncated total least squares solution [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2022
Total least squares (TLS) methods have been widely used in data fitting. Compared with the least squares method, for TLS problem we takes into account not only the observation errors, but also the errors in the measurement matrix.
Qian Zuo, Yimin Wei, Hua Xiang
semanticscholar   +1 more source

A Fine Line: Total Least-Squares Line Fitting as QCQP Optimization [PDF]

open access: yesarXiv.org, 2022
This note uses the Total Least-Squares (TLS) line-fitting problem as a canvas to explore some modern optimization tools. The contribution is meant to be tutorial in nature.
T. Barfoot   +2 more
semanticscholar   +1 more source

Tensor Regularized Total Least Squares Methods with Applications to Image and Video Deblurring [PDF]

open access: yesarXiv.org, 2022
Total least squares (TLS) is an effective method for solving linear equations with the situations, when noise is not just in observation matrices but also in mapping matrices.
F. Han, Y. Wei, P. Xie
semanticscholar   +1 more source

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