Results 11 to 20 of about 1,108,741 (301)
4D Flow MRI Pressure Estimation Using Velocity Measurement-Error-Based Weighted Least-Squares. [PDF]
IEEE Trans Med Imaging, 2020 Zhang J +7 more
europepmc +2 more sources
A Novel Fiber Optic Sensor for Microparticle Velocity Measurement Using Multicore Fiber
Applied Sciences, 2020 A novel fiber optic sensor is proposed to achieve the measurement of single microparticle velocity in a two-dimensional space by translating the cores of a multicore fiber in their respective directions into independent spatial filters.
Xin Ma, Zhao Sun, Haimei Luo, Xinwan Li
doaj +1 more source
Globally stable velocity estimation using normalized velocity measurement [PDF]
The International Journal of Robotics Research, 2019 The problem of estimating velocity from a monocular camera and calibrated inertial measurement unit (IMU) measurements is revisited. For the presented setup, it is assumed that normalized velocity measurements are available from the camera. By applying results from nonlinear observer theory, we present velocity estimators with proven global stability ...
Elias Bjørne +4 more
openaire +2 more sources
Sensors, 2022 In order to solve the collaborative navigation problems in challenging environments such as insufficient visible satellites, obstacle reflections and multipath errors, and in order to improve the accuracy, usability, and stability of collaborative ...
Lvyang Ye +4 more
doaj +1 more source
Acoustic measurement of potato cannon velocity [PDF]
, 2006 This article describes measurement of potato cannon velocity with a digitized microphone signal. A microphone is attached to the potato cannon muzzle and a potato is fired at an aluminum target about 10 m away.
Courtney, Amy, Courtney, Michael
core +2 more sources
Journal of Marine Science and Engineering, 2020 An accurate description of hydrodynamic processes in coastal wetlands is needed to improve their management and conservation. As a consequence, higher knowledge of the connected morphological and ecologic processes is achievable.
Daniele Pinton +2 more
doaj +1 more source
Continuous Analysis of Running Mechanics by Means of an Integrated INS/GPS Device
Sensors, 2019 This paper describes a single body-mounted sensor that integrates accelerometers, gyroscopes, compasses, barometers, a GPS receiver, and a methodology to process the data for biomechanical studies. The sensor and its data processing system can accurately
Pavel Davidson +4 more
doaj +1 more source
Accuracy Analysis of Spectral Velocimetry for the Solar Doppler Difference Navigation
IEEE Access, 2021 The accuracy of spectral velocimetry is an important performance index for the solar Doppler difference navigation. In order to analyze the influence of spectral variation on the accuracy of velocity measurement, we establish a velocimetry model based on
Shuying Huang +3 more
doaj +1 more source
Moving target detection based on velocity compensation methods in a coherent continuous wave lidar
The Journal of Engineering, 2019 Light Detection and Ranging (lidar) technology has been applied in military and civil areas and shows great potential. However, in coherent lidar detection, significant Doppler Effect and velocity uncertainty result a bad influence on moving target ...
Huixin Huang +3 more
doaj +1 more source
Investigating wind turbine dynamic transient loads using contactless shaft torque measurements
The Journal of Engineering, 2019 The wind industry is showing increasing awareness about the importance of long-term direct shaft mechanical torque measurements to fully understand wind turbine (WT) dynamics, adopt proactive solutions for extreme load mitigation and enhance condition ...
Donatella Zappalá +3 more
doaj +1 more source