Results 21 to 30 of about 847,419 (234)

A Model for the Backscattering From a Canonical Ship in SAR Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
Synthetic aperture radar (SAR) sensors represent one of the most effective means to support activities in the sector of maritime surveillance. In the field of ship detection, many SAR-based algorithms have been proposed recently, but none of them has ...
Pasquale Iervolino   +2 more
doaj   +1 more source

Radar signatures of sea lions at K‐band and W‐band

open access: yesIET Radar, Sonar & Navigation
The millimetre wave radar signatures of sea lions collected from three animals in the outdoor seal pool available at the Sea Mammal Research Unit in St Andrews in the Autumn of 2021 is reported.
Samiur Rahman   +3 more
doaj   +1 more source

Radar Investigation of Mars, Mercury, and Titan [PDF]

open access: yes, 1995
Radar astronomy is the study of the surfaces and near surfaces of Solar System objects using active transmission of modulated radio waves and the detection of the reflected energy.
Butler, Bryan J.   +2 more
core   +1 more source

On Sea Ice/Water Discrimination by Airborne Weather Radar

open access: yesIEEE Access, 2020
We consider a conceptual approach for the applicability of airborne weather radar for the sea ice/water discrimination and estimation of the sea ice age.
Alexey Nekrasov   +6 more
doaj   +1 more source

Reconstructing ice-sheet accumulation rates at ridge B, East Antarctica [PDF]

open access: yes, 2004
Understanding how ice sheets responded to past climate change is fundamental to forecasting how they will respond in the future. Numerical models calculating the evolution of ice sheets depend upon accumulation data, which are principally available from ...
Antony J. Payne   +3 more
core   +2 more sources

Measurements and analysis of the radar cross section of chaff dipoles

open access: yesIET Radar, Sonar & Navigation
A free space test method to measure the Radar Cross Section (RCS) of single dipole elements is presented. The method is such that dipoles can be measured over a large range of frequencies, in free space and without the need of an anechoic chamber.
Alessio Balleri, Brian Butters
doaj   +1 more source

Radar Cross-section Measurement Techniques

open access: yesDefence Science Journal, 2010
Radar cross-section (RCS) is an important study parameter for defence applications specially dealing with airborne weapon system. The RCS parameter guides the detection range for a target and is therefore studied to understand the effectiveness of a weapon system.
V. Borkar   +3 more
openaire   +1 more source

Statistical analysis of hypersonic glide vehicle radar cross section

open access: yesIET Radar, Sonar & Navigation
The capability to design, manufacture and test Hypersonic Glide Vehicles (HGVs) has been demonstrated by a number of nations, and they are increasingly forming part of military inventories, potentially offering capabilities highly unique to this ...
Jonathan Pinto   +3 more
doaj   +1 more source

System‐based specifications for better design of ground‐penetrating radar antennas

open access: yesIET Microwaves, Antennas & Propagation, 2023
Currently, no publicly available comprehensive set of specifications exists for the design of ground‐penetrating radar antennas. Specifications are presented and derived for the design of a ground‐penetrating radar antenna based on the antenna's ...
Samuel Wagner   +3 more
doaj   +1 more source

Non‐Rayleigh Statistics of Ultrasonic Backscattered Echo from Tissues [PDF]

open access: yes, 1994
The envelope of the backscattered signal from tissues can exhibit non‐Rayleigh statistics if the number density of scatterers is small or if the variations in the scattering cross sections are random. The K distribution which has been used extensively in
Molthen, Robert C.   +3 more
core   +1 more source

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