Results 1 to 10 of about 845,306 (261)

Random error units, extension of a novel method to express random error in epidemiological studies [PDF]

open access: yesClinical Epidemiology, 2019
Imre Janszky,1 Johan Håkon Bjørngaard,1 Pål Romundstad,1 Lars Vatten,1 Nicola Orsini2 1Deparment of Public Health, Faculty of Medicine and Health, Norwegian University of Science and Technology, Trondheim, Norway; 2Department of Public
Janszky I   +4 more
doaj   +5 more sources

A Random Error Suppression Method Based on IGWPSO-ELM for Micromachined Silicon Resonant Accelerometers [PDF]

open access: yesMicromachines, 2023
There are various errors in practical applications of micromachined silicon resonant accelerometers (MSRA), among which the composition of random errors is complex and uncertain.
Peng Wang   +4 more
doaj   +2 more sources

Random Error Reduction Algorithms for MEMS Inertial Sensor Accuracy Improvement—A Review [PDF]

open access: yesMicromachines, 2020
Research and industrial studies have indicated that small size, low cost, high precision, and ease of integration are vital features that characterize microelectromechanical systems (MEMS) inertial sensors for mass production and diverse applications. In
Shipeng Han   +4 more
doaj   +2 more sources

Improving the Accuracy of TanDEM-X Digital Elevation Model Using Least Squares Collocation Method

open access: yesRemote Sensing, 2023
The TanDEM-X Digital Elevation Model (DEM) is limited by the radar side-view imaging mode, which still has gaps and anomalies that directly affect the application potential of the data. Many methods have been used to improve the accuracy of TanDEM-X DEM,
Xingdong Shen, Cui Zhou, Jianjun Zhu
doaj   +1 more source

ARRAY RADIATION PATTERN RECOVERY UNDER RANDOM ERRORS USING CLUSTERED LINEAR ARRAY

open access: yesJournal of Engineering and Sustainable Development, 2022
In practice, random errors in the excitations (amplitude and phase) of array elements cause undesired variations in the array patterns. In this paper, the clustered array elements with tapered amplitude excitations technique are introduced to reduce the
Ahmed J. Abdulqader   +2 more
doaj   +3 more sources

Evaluation and Error Decomposition of IMERG Product Based on Multiple Satellite Sensors

open access: yesRemote Sensing, 2023
The Integrated Multisatellite Retrievals for GPM (IMERG) is designed to derive precipitation by merging data from all the passive microwave (PMW) and infrared (IR) sensors.
Yunping Li   +4 more
doaj   +1 more source

Experimental Comparison of Interference and Autocollimating Null Indicators

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. At present, measurement of angles with high accuracy is an essential task in various scientific and industrial fields. The goniometer is one of the most widespread high-precision angle measuring devices, which can incorporate various types ...
B. Nyamweru, E. V. Shishalova
doaj   +1 more source

Determination of an optimal treatment margin for intracranial tumours treated with radiotherapy at Groote Schuur Hospital

open access: yesSouth African Journal of Oncology, 2020
Background: Accurate delivery of radiotherapy is a paramount component of providing safe oncological care. Margins are applied when planning radiotherapy to account for subclinical tumour spread, physiological movement and setup error.
Andre Vos   +2 more
doaj   +1 more source

Performance Improvement of Spaceborne Carbon Dioxide Detection IPDA LIDAR Using Linearty Optimized Amplifier of Photo-Detector

open access: yesRemote Sensing, 2021
The spaceborne double-pulse integrated-path differential absorption (IPDA) light detection and ranging (LIDAR) system was found to be helpful in observing atmospheric CO2 and understanding the carbon cycle.
Yadan Zhu   +11 more
doaj   +1 more source

An Advanced Framework for Merging Remotely Sensed Soil Moisture Products at the Regional Scale Supported by Error Structure Analysis: A Case Study on the Tibetan Plateau

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Data fusion can effectively improve the accuracy of remotely sensed (RS) soil moisture (SM) products. Understanding the error structures of RS SM products is beneficial for formulating a data fusion scheme.
Jian Kang, Rui Jin, Xin Li
doaj   +1 more source

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