Results 1 to 10 of about 12,051,715 (310)

A Novel MEMS Gyroscope In-Self Calibration Approach [PDF]

open access: yesSensors, 2020
This paper presents a novel approach for hand-held low-cost MEMS (micro-electro-mechanical system) gyroscope in-self calibration. This method does not need the support of external high-precision equipment compared with traditional calibration scheme and ...
Qifan Zhou   +3 more
doaj   +2 more sources

Roll Calibration for CryoSat-2: A Comprehensive Approach [PDF]

open access: yesRemote Sensing, 2021
CryoSat-2 is the first satellite mission carrying a high pulse repetition frequency radar altimeter with interferometric capability on board. Across track interferometry allows the angle to the point of closest approach to be determined by combining ...
Albert Garcia-Mondéjar   +4 more
doaj   +3 more sources

Estimation of Coefficient of Variation Using Calibrated Estimators in Double Stratified Random Sampling

open access: yesMathematics, 2023
One of the most useful indicators of relative dispersion is the coefficient of variation. The characteristics of the coefficient of variation have contributed to its widespread use in most scientific and academic disciplines, with real life applications.
Usman Shahzad   +5 more
doaj   +1 more source

A Designed Calibration Approach for the Measurement-While-Drilling Instrument

open access: yesApplied Sciences, 2022
The Measurement-While-Drilling (MWD) system, composed of a tri-axial magnetometer and a tri-axial accelerometer, is widely used in the Horizontal Directional Drilling machine in coal mines.
Zongwei Liu   +4 more
doaj   +1 more source

Polarization lidar: an extended three-signal calibration approach [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
We present a new formalism to calibrate a three-signal polarization lidar and to measure highly accurate height profiles of the volume linear depolarization ratios under realistic experimental conditions.
C. Jimenez   +5 more
doaj   +1 more source

Online Monitoring of the Growth of Probiotic Bacteria and Metabolites in the Fermentation of a Teff Substrate Using Model-Based Calibration of 2D Fluorescence Spectra

open access: yesMicroorganisms, 2023
The demand for probiotic bacteria-fermented food products is increasing; however, the monitoring of the fermentation process is still challenging when using conventional approaches.
Sendeku Takele Alemneh   +4 more
doaj   +1 more source

Fast and deterministic optical phased array calibration via pointwise optimisation

open access: yesLight: Advanced Manufacturing, 2023
Owing to the structural errors in the optical phased array, an initial random phase reduces the quality of the deflection beam. The most commonly applied approach to phase calibration is based on adaptive optics. However, adaptive optimisation approaches
Jingwen Shan   +4 more
doaj   +1 more source

Extrinsic calibration of stereo camera and three-dimensional laser scanner [PDF]

open access: yesКомпьютерная оптика, 2019
The paper describes an approach that allows solving the problem of extrinsic calibration of a multi-beam lidar and a stereo camera. The approach does not impose any restrictions on the place in which calibration should be performed.
Alexander Abramenko
doaj   +1 more source

An Investigation on a Plane-Based Dynamic Calibration Method for the Handheld LiDAR Scanner

open access: yesSensors, 2022
A plane-based dynamic calibration method had been proposed by the previous study for the GeoSLAM ZEB Horizon handheld LiDAR scanner. Only one preliminary test was presented. Therefore, three datasets in a calibration field were collected in this study on
Shih-Hong Chio
doaj   +1 more source

Extended Pseudo Invariant Calibration Site-Based Trend-to-Trend Cross-Calibration of Optical Satellite Sensors

open access: yesRemote Sensing, 2021
Satellite sensors have been extremely useful and are in massive demand in the understanding of the Earth’s surface and monitoring of changes. For quantitative analysis and acquiring consistent measurements, absolute radiometric calibration is necessary ...
Prathana Khakurel   +3 more
doaj   +1 more source

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