Results 31 to 40 of about 6,415,065 (280)

Simulations of sea surface reflection for V-band O2 differential absorption radar barometry

open access: yesFrontiers in Remote Sensing, 2023
This study simulates V-band sea surface reflectance and normalized radar cross-section (NRCS) for sea surface air pressure barometry using a differential absorption radar operating at three spectrally even spaced close frequency bands (65.5, 67.75 and 70.
Bing Lin   +10 more
doaj   +1 more source

Developments in target micro-Doppler signatures analysis : radar imaging, ultrasound and through-the-wall radar [PDF]

open access: yes, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Woodbridge, K.   +3 more
core   +5 more sources

Backscattering Statistics of Labeled Sentinel-1 Wave Mode Imagettes for Ten Geophysical Phenomena

open access: yesJournal of Marine Science and Engineering, 2022
Synthetic aperture radar (SAR) is a sensor that is proven to have great potential in observing atmospheric and oceanic phenomena at high-spatial resolutions (∼10 m).
Ziyue Dai   +3 more
doaj   +1 more source

Incidence angle normalization of Wide Swath SAR data for oceanographic applications

open access: yesOpen Geosciences, 2016
A backscattering trend in the range direction of the signal received by Synthetic Aperture Radar (SAR) in Wide Swath (WS) mode results in a progressive reduction of brightness over images from near to far range, which affects the detection and ...
Topouzelis Konstantinos   +2 more
doaj   +1 more source

Development of a New Tropical Cyclone Strip Segment Retrieval Model for C-Band Cross-Polarized SAR Data

open access: yesRemote Sensing, 2022
Compared with co-polarized (HH/VV) normalized radar cross-section (NRCS) backscattered from the sea surface, there is no saturation phenomenon in cross-polarized (HV/VH) NRCS when wind speed is greater than about 20 m/s, so cross-polarized synthetic ...
Letian Lv   +4 more
doaj   +1 more source

The dependence of radar target detectability on array weighting function [PDF]

open access: yes, 2009
Presented at the IET-Radar 2007 Conference Edinburgh 15-18 October 2007This paper describes simulation work to assess the detectability of targets by an airborne fire control radar (FCR) operating in a medium pulse repetition frequency (PRF) mode in ...
Alabaster, Clive M., Hughes, Evan J.
core   +7 more sources

Technical Evaluation of Sentinel-1 IW Mode Cross-Pol Radar Backscattering from the Ocean Surface in Moderate Wind Condition

open access: yesRemote Sensing, 2017
The Sentinel-1 synthetic aperture radar (SAR) allows sufficient resources for cross-pol wind speed retrievals over the ocean. In this paper, we present technical evaluation on wind retrieval from both Sentinel-1A and Sentinel-1B IW cross-pol images ...
Lanqing Huang   +4 more
doaj   +1 more source

Acceleration of parasitic multistatic radar system using GPGPU [PDF]

open access: yes, 2011
This dissertation details the implementation of PMR [Parasitic Multistatic Radar] signal processing chain in the GPGPU [General Purpose Graphic Processing Units] platform.
John, Mathew
core   +1 more source

Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed

open access: yesRemote Sensing
In previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at
Maria Panfilova, Vladimir Karaev
doaj   +1 more source

Characterization of surface clutter signal in the presence of orography for a spaceborne conically scanning W-band Doppler radar [PDF]

open access: yesAtmospheric Measurement Techniques
The Earth's surface radar reflection is one of the most important signals received by spaceborne radar systems. It is used in several scientific applications, including geolocation, terrain classification, and path-integrated attenuation estimation.
F. Manconi   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy