Results 21 to 30 of about 1,340,145 (390)

Acoustic echo and noise canceller for personal hands-free video IP phone [PDF]

, 2016
This paper presents implementation and evaluation of a proposed acoustic echo and noise canceller (AENC) for videotelephony-enabled personal hands-free Internet protocol (IP) phones.
Akira Nakagawa, Masahiro Fukui, Suehiro Shimauchi, Yoichi Haneda, Yusuke Hioka   +4 more
core   +2 more sources

Multiangle, Frequency, and Polarization Radar Measurement of Ice Sheets

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Radio echo sounding of polar ice sheets provides important information on the ice bed topography and internal layers. These data have been used by scientists to create 3-D maps of polar ice sheets for climate modeling as well as to reconstruct the ...
Jie-Bang Yan, Linfeng Li, Joshua A. Nunn, Dorthe Dahl-Jensen, Charles O'Neill, Ryan A. Taylor, Christopher D. Simpson, Shashank Wattal, Daniel Steinhage, Prasad Gogineni, Heinrich Miller, Olaf Eisen   +11 more
doaj   +1 more source

Comparison of measurements from different radio-echo sounding systems and synchronization with the ice core at Dome C, Antarctica

, 2017
. We present a compilation of radio-echo sounding (RES) measurements of five radar systems (AWI, BAS, CReSIS, INGV and UTIG) around the EPICA Dome C (EDC) drill site, East Antarctica.
A. Winter, D. Steinhage, E. Arnold, D. Blankenship, M. Cavitte, H. Corr, J. Paden, S. Urbini, D. Young, O. Eisen   +9 more
semanticscholar   +1 more source

Narrative of Chain cruise #17, phase I : St. George, Bermuda, to Freetown, Sierra Leone, 19 February - 22 March 1961 [PDF]

, 1964
The journal of a cruise of R/V CHAIN from Bermuda to Freetown, Sierra Leone during February and March, 1961, is the basis of this report. Location of observations are given.
Bunce, Elizabeth T., Voorhis, Arthur D.
core   +1 more source

Real-time Monitoring of Uncertainty due to Refraction in Multibeam Echo Sounding [PDF]

, 2010
A software toolkit has been developed to objectively monitor uncertainty due to refraction in multibeam echosounding, specifically mapping systems that employ underway sound speed profiling hardware.
Jonathan Beaudoin
openalex   +3 more sources

In Situ Demonstration of a Passive Radio Sounding Approach Using the Sun for Echo Detection

IEEE Transactions on Geoscience and Remote Sensing, 2018
Ice sheet contributions to sea level rise present one of the greatest challenges that our society will face in the next century. However, models predicting sea level rise due to ice melt lack critical information regarding processes at the base of ice ...
S. Peters, D. Schroeder, Davide Castelletti, M. Haynes, A. Romero-Wolf   +4 more
semanticscholar   +1 more source

The multi-frequency sodar with high temporal resolution

Meteorologische Zeitschrift, 2009
The new sodar LATAN-3M with a frequency-coded sounding signal was developed, manufactured, and successfully tested at the Obukhov Institute for Atmospheric Physics.
Rostislav D. Kouznetsov
doaj   +1 more source

Airborne Radio Echo Sounding (RES) measures on Alpine Glaciers to evaluate ice thickness and bedrock geometry: preliminary results from pilot tests performed in the Ortles Cevedale Group (Italian Alps).

, 2017
Radar exploration supports glaciological studies playing several roles in ice exploration such as determining ice thickness and volume, describing ice and snow internal layering and characterizing crevassed areas.
S. Urbini, A. Zirizzotti, J. Baskaradas, I. Tabacco, L. Cafarella, A. Senese, C. Smiraglia, G. Diolaiuti   +7 more
semanticscholar   +1 more source

Acoustic Imaging of Selected Areas of Gdansk Bay with the Aid of Parametric Echosounder and Side-Scan Sonar

Polish Maritime Research, 2017
The article presents and analyses the data recorded during sounding of the Gdansk Bay seabed with the aid of a parametric echosounder and a side-scan sonar.
Grelowska Grażyna, Kozaczka Eugeniusz, Szymczak Wojciech   +2 more
doaj   +1 more source

NATIONAL SEISMIC, RADAR AND SEISMOLOGICAL STUDIES OF SUBGLACIAL LAKE VOSTOK

Лëд и снег, 2015
The results of the remote sensing which carried out in the LakeVostokarea are discussed in the paper. A.P. Kapitsa and O.G. Sorokhtin started the geophysical researches in this area in 1950s.
S. V. Popov, V. N. Masolov, V. V. Lukin, A. M. Popkov   +3 more
doaj   +1 more source