Results 111 to 120 of about 65,405 (227)

An alternative representation of Synthetic Aperture Radar images as an aid to the interpretation of englacial observations [PDF]

The Cryosphere
Ground-penetrating radar reveals subsurface geometry and ice stratigraphy that contains information about past and present dynamics of the cryosphere. Synthetic Aperture Radar (SAR) is a processing technique based on averaging the radar echoes received ...
Á. Arenas-Pingarrón, A. M. Brisbourne, C. Martín, H. F. J. Corr, C. Robinson, T. A. Jordan, P. V. Brennan   +6 more
doaj   +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., Gage, K. S., Green, J. L., Nastrom, G. D., Vanzandt, T. E., Warnock, J. M.   +5 more
core   +1 more source

Peering Inside Tropical Cyclones With the WIVERN Space‐Borne Doppler Radar

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract The WIVERN (Wind Velocity Radar Nephoscope) mission significantly enhances the global tropical cyclone observing system. Operating from a 500 km near‐polar orbit, the 3 m diameter conically scanning antenna provides an 800 km swath. The radar operated at 94 GHz (3 mm wavelength) provides high‐resolution observations with a vertical resolution ...
Alessandro Battaglia, Francesco Manconi, Massimiliano Recupero, Cinzia Cambiotti, Marco Coppola, Antonio Parodi, Frederic Tridon, Simone Mantovani, Pavlos Kollias, David S. Nolan, Marcel Kleinherenbrink, Maryam Pourshamsi   +11 more
wiley   +1 more source

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

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

Doppler Problems in Orthogonal MIMO Radars

2006 IEEE Conference on Radar, 2006
This paper presents a construction methodology waveform design with low cross-correlation, autocorrelation peak sidelobe levels and resilience to Doppler for orthogonal multiple-input multiple-output (MIMO) radar applications. It shows that an existing numerical solution only addresses autocorrelation and cross-correlation properties with the result ...
Khan, H, Edwards, D, IEEE
openaire   +2 more sources

Preservation of Historically and Scientifically Important Geospatial Data From Venus

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract A large volume of scientifically and historically important data from the early exploration of Venus is not widely available to researchers. Our work is focused on ameliorating this problem with the archival of geospatial data including radar, topography, and radiometry.
T. J. Austin, J. G. O'Rourke, D. M. Nelson   +2 more
wiley   +1 more source

Hand Gesture Recognition Using Micro-Doppler Signatures With Convolutional Neural Network

IEEE Access, 2016
In this paper, we investigate the feasibility of recognizing human hand gestures using micro-Doppler signatures measured by Doppler radar with a deep convolutional neural network (DCNN).
Youngwook Kim, Brian Toomajian
doaj   +1 more source

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

Reliability and validity of motion sensor and radar for measuring shuttlecock velocity in badminton

International Journal of Racket Sports Science
Radar doppler and inertial measurement unit are often used to analyze the projectile velocity. The aim of the present study was to analyse the reliability and validity of a specifically motion sensor (named: Zepp Tennis) and a radar (Doppler-radar gun ...
Michael Phomsoupha, Florie Bonneau, Guillaume Laffaye   +2 more
doaj  

Data analysis techniques: Spectral processing [PDF]

, 1983
The individual steps in the data processing scheme applied to most radars used for wind sounding are analyzed. This processing method uses spectral analysis and assumes a pulse Doppler radar.
Strauch, R. G.
core   +1 more source