Pulse radar technique for reflectometry on thermonuclear plasmas

1991 ◽  
Vol 62 (4) ◽  
pp. 1100-1101 ◽  
Author(s):  
C. A. J. Hugenholtz ◽  
S. H. Heijnen
Keyword(s):  
2014 ◽  
Vol 73 (8) ◽  
pp. 705-717
Author(s):  
G. I. Khlopov ◽  
A. V. Zorenko ◽  
A. L Teplyuk ◽  
C. Plueschke ◽  
J. Wolff ◽  
...  

2012 ◽  
Vol 58 (2) ◽  
pp. 171-176 ◽  
Author(s):  
Piotr Samczyński ◽  
Michał Wilkowski ◽  
Krzysztof Kulpa

Trial Results on Bistatic Passive Radar Using Non-Cooperative Pulse Radar as Illuminator of Opportunity The paper presents the concept of passive radar exploiting the active Air Traffic Control (ATC) radar as the source of illumination, and the primary results of the measurement campaign carried out at the DSP Laboratory of the Warsaw University of Technology. The system, built using commercial off the shelf components, was able to detect and track airliners landing at Warsaw airport. To verify the system accuracy the IFF mode S messages were recorded, providing ground truth of the observed planes.


2015 ◽  
Vol 51 (2) ◽  
pp. 937-950 ◽  
Author(s):  
Gabriel Lellouch ◽  
Amit Kumar Mishra ◽  
Michael Inggs
Keyword(s):  

1987 ◽  
Vol 33 (115) ◽  
pp. 330-340 ◽  
Author(s):  
Steven A Arcone ◽  
Allan J Delaney

AbstractThe ice-thickness profiling performance of a helicopter-mounted short-pulse radar operating at approximate center frequencies of 600 and 900 MHz was assessed. The antenna packages were mounted 1.2 m off the skid of a small helicopter whose speed and altitude were varied from about 1.8 to 9 m/s and 3 to 12 m. Clutter from the helicopter offered minimal interference with the ice data. Data were acquired in Alaska over lakes (as a proving exercise) and two rivers, whose conditions varied from open water to over 1.5 m of solid ice with numerous frazil-ice formations. The most readily interpretable data were acquired when the ice or snow surface was smooth. Detailed surface investigations on the Tanana River revealed good correlations of echo delay with solid ice depth, but an insensitivity to frazil-ice depth due to its high water content. On the Yukon River, coinciding temporally coherent surface and bottom reflections were associated with solid ice and smooth surfaces. All cases of incoherent surface returns (scatter) occurred over ice rubble. Rough-surface scattering was always followed by the appearance of bottom scattering but, in many cases, including a hanging-wall formation of solid frazil ice, bottom scattering occurred beneath coherent, smooth-surface reflections. Areas of incoherent bottom scattering investigated by drilling revealed highly variable ice conditions, including frazil ice. The minimum ice thickness that could be resolved from the raw data was about 0.2 m with the 600 MHz antenna and less than 0.15 m with the 900 MHz antenna.


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