Results 21 to 30 of about 199,002 (256)

Off-line and on-line calibration of dynamic traffic assignment systems [PDF]

open access: yes, 2009
Dynamic traffic assignment (DTA) systems integrate complex transportation demand and network supply simulation models to estimate current traffic conditions, predictfuture network performance and generate consistent, anticipatory route guidance.
Koutsopoulos, Haris,   +5 more
core   +1 more source

Toward Improvements in Pressure Measurements for Near Free-Field Blast Experiments

open access: yesSensors, 2023
This paper proposes two ways to improve pressure measurement in air-blast experimentations, mostly for close-in detonations defined by a small-scaled distance below 0.4 m.kg−1/3. Firstly, a new kind of custom-made pressure probe sensor is presented.
Maylis Lavayssière   +10 more
doaj   +1 more source

Characterization for high dynamic range imaging [PDF]

open access: yes, 2008
In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images,
Kim, M.H.   +5 more
core   +1 more source

Optimized Periodic ΣΔ Bitstreams for DC Signal Generation Used in Dynamic Calibration Applications

open access: yesIEEE Open Journal of Circuits and Systems, 2020
Settling time is an important performance metric in digital-to-analog converters (DACs) that are used for dynamic calibration applications. To obtain an area efficient DAC design, periodic sequences are generated from sigma-delta modulators (Σ ...
Ahmed S. Emara   +5 more
doaj   +1 more source

Automated planning to minimise uncertainty of machine tool calibration [PDF]

open access: yes, 2014
When calibrating a machine tool, multiple measurement tasks will be performed, each of which has an associated uncertainty of measurement. International Standards and best-practice guides are available to aid with estimating uncertainty of measurement ...
Longstaff, Andrew P.   +8 more
core   +1 more source

Dynamic Pressure Transducer Calibration – Traceable? [PDF]

open access: yes, 2017
Pressure transducers are mainly used for dynamic measurements but calibrated by means of static calibration methods. The reason is that neither a standardized method for a traceable dynamic secondary calibration of pressure transducers nor a primary ...
Martin Iwanczik   +2 more
core   +1 more source

A digital high-dynamic-range CMOS image sensor with multi-integration and pixel readout request [PDF]

open access: yes, 2007
A novel principle has been developed to build an ultra wide dynamic range digital CMOS image sensor. Multiple integrations are used to achieve the required dynamic.
Segura, Josep   +7 more
core   +1 more source

Study on Installation Error Analysis and Calibration of Acoustic Transceiver Array Based on SINS/USBL Integrated System

open access: yesIEEE Access, 2018
The installation error of USBL acoustic transceiver array is one of the important error sources for the SINS/USBL integrated navigation system. The installation error of USBL transceiver array can be divided into coordinate shift error and angle rotation
Tong Jinwu   +4 more
doaj   +1 more source

Research on a Dynamic Calibration Method for Photogrammetry Based on Rotary Motion

open access: yesApplied Sciences, 2023
Photogrammetry as an engineering measurement technology for the rapid and non-contact acquisition of geometric parameters, such as the attitude, position, and shape of a measured object, is widely used in the development and production processes of the ...
Jia Ou   +6 more
doaj   +1 more source

A Remotely Controlled Calibrator for Chemical Pollutant Measuring-Units [PDF]

open access: yes, 2007
The increasing diffusion of pollutant measuring units, which are installed over wide areas, along with the short calibration interval of several sensors for pollutant quantities, requires new calibration infrastructures to be developed.
Carullo, Alessio   +2 more
core   +1 more source

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