Results 101 to 110 of about 70,532 (278)

Experimental Research on Micro-Doppler Effect of Multi-rotor Drone with Digital Television Based Passive Radar

open access: yesLeida xuebao, 2018
In this paper, experimental results of micro-Doppler effect on a multi-rotor drone with digital television based passive radar are discussed. First, the bistatic passive radar micro-motion model of the drone is established.
Liu Yuqi   +5 more
doaj   +1 more source

El Campo solar radar system Second semiannual report, Jul. 1 - Dec. 31, 1965 [PDF]

open access: yes
Doppler characteristics of radar echoes reflected by solar ...
Harrington, J. V.
core   +1 more source

Microphysical and Kinematical Characteristics of Merged and Isolated Convective Cells Over the Complex Terrain of the Taipei Basin

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 15, 16 August 2025.
Abstract This study investigates the microphysical and kinematic characteristics in extreme afternoon thunderstorm rainfall during Taiwan‐Area Heavy rain Observation and Prediction Experiment/Prediction of Rainfall Extremes Campaign In the Pacific IOP 2.
Jyong‐En Miao   +5 more
wiley   +1 more source

Measurement of vertical velocity using clear-air Doppler radars [PDF]

open access: yes
A new clear air Doppler radar was constructed, called the Flatland radar, in very flat terrain near Champaign-Urbana, Illinois. The radar wavelength is 6.02 m.
Clark, W. L.   +5 more
core   +1 more source

The Determination of Kinematic Properties of a Wind Field Using Doppler Radar [PDF]

open access: hybrid, 1968
K. A. Browning, Raymond Wexler
openalex   +1 more source

Do Observations Support Ideas Behind Common Mass Flux Closures?

open access: yesGeophysical Research Letters, Volume 52, Issue 15, 16 August 2025.
Abstract The cloud‐base mass flux closure is a critical component of convective parameterizations and usually consists of scalings for the cloud(‐core) area fraction and vertical velocity. Here we evaluate if observations from the EUREC4A campaign support ideas behind two common closures.
R. Vogel, J. P. Mellado
wiley   +1 more source

Classification of Personnel Targets with Baggage Using Dual-band Radar

open access: yesRemote Sensing, 2017
In this paper, we aim to identify passengers with different baggage by analyzing the micro-Doppler radar signatures corresponding to different kinds of gaits, which is helpful to improve the efficiency of security check in airports. After performing time-
Le Yang, Gao Chen, Gang Li
doaj   +1 more source

Remote temperature profiling in the troposphere and stratosphere by the radio-acoustic sounding technique [PDF]

open access: yes, 1986
Radar application of the radio-acoustic sounding technique uses the Doppler frequency shift of radar echoes returning from the atmospheric wave structure, in association with a traveling acoustic pulse transmitted from the ground, to determine the speed ...
Inuki, H., Masuda, Y., Matuura, N.
core   +1 more source

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