Results 61 to 70 of about 1,338 (149)

Phase‐coded radar waveform design with quantum annealing

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 3, Page 532-540, March 2024.
The Integrated Side Lobe Ratio (ISLR) problem the authors consider here consists in finding optimal sequences of phase shifts in order to minimise the mean squared cross‐correlation side lobes of a transmitted radar signal and a mismatched replica.
Timothé Presles   +3 more
wiley   +1 more source

Capabilities and challenges of passive radar systems based on broadband low‐Earth orbit communication satellites

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 1, Page 78-92, January 2024.
This paper analyses the capabilities and challenges of passive radar systems based on novel Low‐Earth Orbit (LEO) broadband communication satellites with a special focus on the estimation of the achievable performance and on the experimental characterisation of the transmitted signals.
Rodrigo Blázquez‐García   +5 more
wiley   +1 more source

GMTI radar minimum detectable velocity. [PDF]

open access: yes, 2011
Minimum detectable velocity (MDV) is a fundamental consideration for the design, implementation, and exploitation of ground moving-target indication (GMTI) radar imaging modes.
John Richards, Richards, John Alfred
core   +1 more source

A Clutter Suppression Approach for SAR-GMTI Based on Dual-channel DPCA

open access: yesLeida xuebao, 2014
The Displaced Phase Center Antenna (DPCA) technology, a particular form of Space Time Adaptive Processing (STAP), has been widely used in Synthetic Aperture Radar Ground Moving Target Indication (SAR-GMTI).
Wang Xiao-yang   +3 more
doaj   +1 more source

Multiresolution Signal Processing Techniques for Ground Moving Target Detection Using Airborne Radar

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
Synthetic aperture radar (SAR) exploits very high spatial resolution via temporal integration and ownship motion to reduce the background clutter power in a given resolution cell to allow detection of nonmoving targets.
Bergin Jameson S, Techau Paul M
doaj   +1 more source

A Novel Clutter Suppression Approach for the Space-borne Multiple Channel in the Azimuth High-resolution and Wide-swath SAR-GMTI System with an Ambiguous Doppler Spectrum

open access: yesLeida xuebao, 2020
A low pulse repletion frequency is required and an ambiguous Doppler spectrum should be considered to obtain a high-resolution and wide-swath Synthetic Aperture Radar-Ground Moving Target Indication (SAR-GMTI) system in the azimuth direction.
ZHANG Shuangxi   +4 more
doaj   +1 more source

Study on SAR/GMTI Processing for High-resolution Wide-swath SAR System

open access: yesLeida xuebao, 2015
In recent years, there have been many studies on Synthetic Aperture Radar (SAR), and High- Resolution and Wide-Swath (HRWS) imaging has attracted increasing attention.
Xing Meng-dao, Sun Guang-cai, Li Xue-shi
doaj   +1 more source

Acceleration Compensation for Estimation of Along-Track Velocity of Ground Moving Target from Single-Channel SAR SLC Data

open access: yesRemote Sensing, 2020
Across-track acceleration is a major source of estimation error of along-track velocity in synthetic-aperture radar (SAR) ground moving-target indication (GMTI).
Sang-Wan Kim, Joong-Sun Won
doaj   +1 more source

An Accurate Imaging and Doppler Chirp Rate Estimation Algorithm for Airborne CSSAR-GMTI Systems

open access: yesIEEE Access, 2019
Airborne circular stripmap synthetic aperture radar (CSSAR)-ground moving target indication (GMTI) systems are attractive tools for air-to-ground surveillance and monitoring, because of their advantages of short revisit time and large coverage.
yongkang li   +6 more
doaj   +1 more source

GMTI processing using back projection. [PDF]

open access: yes, 2013
Backprojection has long been applied to SAR image formation. It has equal utility in forming the range-velocity maps for Ground Moving Target Indicator (GMTI) radar processing.
Doerry, Armin Walter
core  

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