Results 11 to 20 of about 252,409 (330)
Dianxin kexue, 2021 An optimized velocimetric model based on non-differential Doppler observations from BDS-3 satellites with high accuracy and low model complexity was proposed to address insufficient accuracy and low efficiency of velocity estimation method.The ...
Zejie WANG, Qianxin WANG, Tianwen SHANG
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Outlier-Resistant Initial Alignment of DVL-Aided SINS Using Mahalanobis Distance [PDF]
SensorsDue to the influence of the complex underwater environment, the initial alignment method for Doppler velocity log (DVL)-aided strap-down inertial navigation systems (SINS) often suffer from performance degradation, especially when DVL measurements are ...
Yidong Shen +6 more
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Vertical velocity observed by Doppler lidar during cops ? A case study with a convective rain event
Meteorologische Zeitschrift, 2013 Convective and Orographically-Induced Precipitation Study (COPS), conducted in the Black Forest region in Southern Germany and Eastern France during the summer of 2007.
Jenny Davis +5 more
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IEEE AccessVelocity determination as one of the widely used spatial information is essential for the location-based services. Concerned researches about Global Navigation Satellite System (GNSS) velocity determination mainly focus on carrier phase observations ...
Yunlong Zhang
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Detecting wave features in Doppler radial velocity radar observations [PDF]
Atmospheric Measurement Techniques, 2021 Abstract. Mesoscale, wave-like perturbations in horizontal air motions in the troposphere (velocity waves) are associated with vertical velocity, temperature, and pressure perturbations that can initiate or enhance precipitation within clouds. The ability to detect velocity waves from horizontal wind information is an important tool for atmospheric ...
Matthew A. Miller +4 more
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4D RADAR/IMU/GNSS INTEGRATED POSITIONING AND MAPPING FOR LARGE-SCALE ENVIRONMENTS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 4D millimeter-wave radar can work in harsh weather conditions such as fog and snow, and measure the position and radial Doppler velocity of objects in three-dimensional space. Some existing methods perform positioning by fusing 3D velocity or point cloud
B. Wang, Y. Zhuang, N. El-Bendary
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Vector Current Measurement Using Doppler Scatterometry with Optimally Selected Observation Azimuths
Remote Sensing, 2021 The Doppler scatterometer is a new style of remote sensing tool that can provide current measurements over a wide swath for rapid global coverage. The existing current estimation method for Doppler scatterometry uses the maximum likelihood method to ...
Weifeng Sun +4 more
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IEEE Transactions on Geoscience and Remote Sensing, 2021 The Earth Clouds, Aerosol, and Radiation Explorer (EarthCARE) is a satellite mission jointly developed by the Japan Aerospace Exploration Agency (JAXA) and the European Space Agency (ESA).
Y. Hagihara +6 more
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Particle inertial effects on radar Doppler spectra simulation [PDF]
Atmospheric Measurement Techniques, 2023 Radar Doppler spectra observations provide a wealth of information about cloud and precipitation microphysics and dynamics. The interpretation of these measurements depends on our ability to simulate these observations accurately using a forward model ...
Z. Zhu, P. Kollias, P. Kollias, F. Yang
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Determination of Meteor Vector Velocity Using MU Interferometry Measurements of Head Echoes
Remote Sensing, 2023 A new method for measuring the vector velocity of meteoroids using meteor head echoes is proposed in this study. The lateral velocity is determined by utilizing the phase interference measurement between channels, while the radial velocity is obtained ...
Xin Xie +4 more
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