Results 121 to 130 of about 69,955 (288)
Some Measurements of Balloon Motions with Doppler Radar [PDF]
, 1965 G. E. McVehil +2 more
openalex +1 more source
Remote versus in situ turbulence measurements [PDF]
Comparisons of in situ wind and turbulence measurements made with the NASA B-57 instrumented aircraft and those remotely made with both radar and lidar systems are presented.
Frost, Walter
core +1 more source
Doppler effects on velocity spectra observed by MST radars [PDF]
, 1986 Recently, wind data from mesophere-stratosphere-troposphere (MST) radars have been used to study the spectra of gravity waves in the atmosphere (Scheffler and Liu, 1985; VanZandt et al., 1985).
Liu, C. H., Scheffler, A. O.
core +1 more source
Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.Abstract The FY‐3G Precipitation Measurement Radar (PMR), the world's second dual‐frequency satellite precipitation radar (SR), provides three‐dimensional precipitation structure data in mid‐ and low‐latitude regions, with performance comparable to Global Precipitation Measurement Dual‐frequency PR (GPM DPR).
Peng Chen +4 more
wiley +1 more source
Classification of Personnel Targets with Baggage Using Dual-band Radar
Remote 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
Recognition of Lunar Tidal Wind Dynamo Currents in Geomagnetic Lunar Variations
Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.Abstract This work presents a global distribution of daytime lunar tidal winds at altitudes of 80–115 km based on Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics observation. The lunar tidal wind dynamo currents are then derived using the observed winds for the first time, and its lunar geomagnetic effects are studied.
Y. H. Liu +10 more
wiley +1 more source
Doppler Radar Systems for Helicopters
Navigation, 1980 Simple Doppler radar dead-reckoning navigation systems of medium accuracy (l-2%) have recently been developed for helicopters, and are now being applied extensively. Helicopters because of their low cost and large numbers, cannot afford the more sophisticated costly navigation systems used in larger fixed-wing aircraft. Doppler radar navigation systems
openaire +2 more sources
A Theory for the Determination of Wind and Precipitation Velocities with Doppler Radars [PDF]
, 1969 Larry Armijo
openalex +1 more source
Measurement of vertical velocity using clear-air Doppler radars [PDF]
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
Molecular Oncology, Volume 19, Issue 7, Page 1897-1917, July 2025.Circulating tumor DNA (ctDNA) offers a possibility for different applications in early and late stage breast cancer management. In early breast cancer tumor informed approaches are increasingly used for detecting molecular residual disease (MRD) and early recurrence. In advanced stage, ctDNA provides a possibility for monitoring disease progression and
Eva Valentina Klocker +14 more
wiley +1 more source