Research of Error Analysis and Positioning Accuracy with Four-Prism of Laser Scanning

2015 ◽  
Vol 42 (9) ◽  
pp. 0914001
Author(s):  
杨蒙蒙 Yang Mengmeng ◽  
万幼川 Wan Youchuan ◽  
徐景中 Xu Jingzhong
Keyword(s):  
Error Analysis ◽  
Laser Scanning ◽  
Positioning Accuracy

Error Analysis of the Illuminance Meter Verification System

2011 ◽  
Vol 103 ◽  
pp. 378-382
Author(s):  
Feng Zou ◽  
Jian Wu Wang
Keyword(s):  
Error Analysis ◽  
Theoretical Basis ◽  
Research Needs ◽  
Customer Requirements ◽  
Voltage Fluctuation ◽  
Positioning Accuracy ◽  
Verification System ◽  
Future System ◽  
The Future

In illuminance meter verification system, there are many factors that affect verification accuracy. If we can reduce or avoid these factors, the verification system will improve verification accuracy to meet research needs and customer requirements. This paper analyzes the factors in detail during the testing process, such as positioning accuracy and voltage fluctuation. It will help to provide theoretical basis for the future system improvements.

The Error Analysis of GPS-RTK Construction Stakeout

2013 ◽  
Vol 655-657 ◽  
pp. 1884-1888
Author(s):  
Jin Hong Xu ◽  
Ruo Li Yang ◽  
Bei Bei Zhang
Keyword(s):  
Error Analysis ◽  
Real Time ◽  
External Environment ◽  
Positioning Error ◽  
Positioning Accuracy ◽  
Gps Rtk ◽  
Satellite Signal ◽  
The Impact ◽  
Surveying And Mapping

GPS-RTK technology with real-time , high positioning accuracy and easy to operate features, is widely used in the filed of surveying and mapping; With the improvement of RTK technology, the initialize speed , results accuracy and reliability of the RTK survey will be increasingly higher.Due to the impact of the satellite signal and the external environment, the deviation of the RTK positioning and the lack of necessary checking conditions in RTK surveying, this paper will do some researches and analyses about RTK positioning error to serve the Survey and Mapping Engineering better.

Error Analysis in Electron Beam Lithography System -Thermal Effects on Positioning Accuracy-

1992 ◽  
Vol 31 (Part 1, No. 12B) ◽  
pp. 4253-4256 ◽  
Author(s):  
Hiroya Ohta ◽  
Takashi Matsuzaka ◽  
Norio Saitou ◽  
Katsuhiro Kawasaki ◽  
Kazumitsu Nakamura ◽  
...  
Keyword(s):  
Electron Beam ◽  
Error Analysis ◽  
Electron Beam Lithography ◽  
Thermal Effects ◽  
Positioning Accuracy ◽  
Lithography System

Research of Error Analysis and Positioning Accuracy of Airborne Dual-Frequency LiDAR

2018 ◽  
Vol 55 (8) ◽  
pp. 082806
Author(s):  
吕德亮 Lü Deliang ◽  
贺岩 He Yan ◽  
俞家勇 Yu Jiayong ◽  
陈丽明 Chen Liming ◽  
王永星 Wang Yongxing ◽  
...  
Keyword(s):  
Error Analysis ◽  
Dual Frequency ◽  
Positioning Accuracy

Error analysis for large-scale planar laser scanning and compensation system

2018 ◽  
Vol 39 (1) ◽  
pp. 119-125
Author(s):  
Hao Chunyan ◽  
Gao Tianyuan ◽  
Lao Dabao ◽  
Zhou Weihu ◽  
Zhu Qifan
Keyword(s):  
Error Analysis ◽  
Laser Scanning ◽  
Large Scale ◽  
Compensation System ◽  
Planar Laser

Data Processing and Error Analysis of Phased-Array Doppler Sonar Velocity System

2011 ◽  
Vol 204-210 ◽  
pp. 1423-1426
Author(s):  
Kai Zhang ◽  
Kun Shang
Keyword(s):  
Error Analysis ◽  
Data Processing ◽  
Phased Array ◽  
Measurement Precision ◽  
Dominant Factor ◽  
Positioning Accuracy ◽  
Positioning Errors ◽  
Doppler Sonar ◽  
Basic Test

The basic test of the phased-array Doppler sonar velocity system made by us indicates that the positioning errors are large. From the positioning result, it can be known that compass error is the dominant factor. Therefore, to improve the measurement precision of compass and revise its course deviation is one of the keys to improve the accuracy of Doppler positioning. From the speed processing result, it shows that the positioning accuracy can be further improved through averaging the speed (smoothing).

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