Attitude accuracy analysis of PnP based on error propagation theory

2019 ◽  
Vol 27 (2) ◽  
pp. 479-487
Author(s):  
屈也频 QU Ye-pin ◽  
侯 旺 HOU Wang
Keyword(s):  
Error Propagation ◽  
Accuracy Analysis ◽  
Propagation Theory

Application of the error propagation theory in estimates of static formation temperatures in geothermal and petroleum boreholes

2006 ◽  
Vol 47 (20) ◽  
pp. 3659-3671 ◽  
Author(s):  
Surendra P. Verma ◽  
Jorge Andaverde ◽  
E. Santoyo
Keyword(s):  
Error Propagation ◽  
Propagation Theory

Statistical Analysis of the Magnetic Resonance Transmit Radiofrequency Field by the Saturated Turbo FLASH Method

2015 ◽  
Vol 734 ◽  
pp. 572-576
Author(s):  
Qiao Fu Zhang ◽  
Xiao Qing Hu ◽  
Yan Jie Zhu ◽  
Ye Li
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Error Propagation ◽  
Flash Method ◽  
Phase Method ◽  
Propagation Theory ◽  
Image Domain ◽  
The Impact ◽  
White Noises ◽  
Probability Density Function Pdf

The error propagation theory and Monte Carlo simulations were employed to quantitatively evaluate the robustness of the saturated Turbo FLASH (Fast Low Angle SHot, satTFL) method. The uncertainty and probability density function (PDF) of the satTFL were derived. An out-of-phase method was introduced to correct flip angles larger than 90 degrees. Monte Carlo simulations were implemented to estimate the impact of Gaussian white noises in the image domain and thus the sensitivity could be visualized for different flip angles and signal to noise ratios (SNRs). The uncertainty, Monte Carlo simulations and experiments show that the satTFL is more precise for flip angles around 90 degrees.

Optimization of the Breakthrough Accuracy in Tunneling Surveys

1981 ◽  
Vol 35 (1) ◽  
pp. 5-16 ◽  
Author(s):  
Adam Chrzanowski
Keyword(s):  
Relative Error ◽  
Error Propagation ◽  
Control Network ◽  
Accuracy Analysis ◽  
Atmospheric Refraction ◽  
Surface Control ◽  
Proper Design ◽  
Control Survey

Analysis and optimization of the breakthrough accuracy and a proper design of the underground control survey are the most important tasks of the survey engineer in charge of a tunneling project. The breakthrough point P should be treated as two different points P′ and P″ in the accuracy analysis, and the breakthrough error is found from the relative error ellipses calculated for P′ and P″. The accuracy of the underground control surveys (usually open-ended traverses) is much more critical in tunneling surveys than the accuracy of the surface control network. Use of gyrotheodolites decreases the error propagation in underground traverses, particularly when the influence of atmospheric refraction is suspected.

Error Propagation Theory of Chemically Solid Phase Synthesized Oligonucleotides and DNA Sequences for Biomedical Application

1994 ◽  
pp. 165-173 ◽  
Author(s):  
Zeno Földes-Papp ◽  
Armin Herold ◽  
Hartmut Seliger ◽  
Albrecht K. Kleinschmidt
Keyword(s):  
Dna Sequences ◽  
Error Propagation ◽  
Solid Phase ◽  
Biomedical Application ◽  
Propagation Theory

Application of Reflectorless Total Station in Bridge Detection and its Accuracy Analysis

2014 ◽  
Vol 501-504 ◽  
pp. 1439-1444 ◽  
Author(s):  
Jun Feng Suo ◽  
Dong Dong Liu ◽  
Mei Ping Feng ◽  
Lei Sun ◽  
Lan Yang
Keyword(s):  
Error Propagation ◽  
Linear Measurement ◽  
Gansu Province ◽  
New Method ◽  
Accuracy Analysis ◽  
Vertical Deformation ◽  
Total Station ◽  
Arch Bridge ◽  
Linear Measuring ◽  
Dial Indicator

In order to solve the problem of the linear measurement of arch ring for the detection of bridge,a new method is presented that measures the arch ring using a reflectorless total station on the side of the arch bridge and the detail operations are given. Taking account of weakness of edge suveying using a reflectorless total station,some formulas on the 3d coordinates calculation of the above and down edge of the arch ring based on the arch ring points are deduced.According to the law of error propagation, the accuracy of the X and Z axial coordinates are analysed.It is helpful for calculating lateral and vertical deformation and biridges elevation map that the transformation from free-station coordianates to the birdge axis coordinate by programming using EXCEL software is achieved.The method is used for bridges arch ring axial measurement in Qingcheng town,Yuzhong county,Gansu province,and its deformation is consistent with the measured results of the dial indicator,which satisfies the requirement of bridge detecton accuracy.So it is showed that the method is a good way of linear measuring of bridges arch ring.

Accuracy of a single point in kNN applying error propagation theory

2021 ◽  
Author(s):  
Antoni Perez-Navarro
Keyword(s):  
Error Propagation ◽  
Single Point ◽  
Propagation Theory
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