Results 11 to 20 of about 20,153,829 (205)

Space-Time Adaptive Processing (STAP) Developments in Thales

open access: yes, 2009
Space-Time Adaptive Processing (STAP) has been shown to provide significant improvements in many different application areas [1]. Though similar in principle, those applications exhibit specificities, related for example to the characteristics of the antenna arrays and to the statistical properties of the involved signals.
Le Chevalier, François   +4 more
openaire   +2 more sources

Knowledge-aided STAP in heterogeneous clutter using a hierarchical bayesian algorithm [PDF]

open access: yes, 2011
This paper addresses the problem of estimating the covariance matrix of a primary vector from heterogeneous samples and some prior knowledge, under the framework of knowledge-aided space-time adaptive processing (KA-STAP).
Bidon, Stéphanie   +5 more
core   +1 more source

Robust Multiple-Measurement Sparsity-Aware STAP with Bayesian Variational Autoencoder

open access: yesRemote Sensing, 2022
Due to the shortage of independent and identically distributed (i.i.d.) training samples, space−time adaptive processing (STAP) often suffers remarkable performance degradation in the heterogeneous clutter environment.
Chenxi Zhang   +6 more
doaj   +1 more source

A bayesian approach to adaptive detection in nonhomogeneous environments [PDF]

open access: yes, 2008
We consider the adaptive detection of a signal of interest embedded in colored noise, when the environment is nonhomogeneous, i.e., when the training samples used for adaptation do not share the same covariance matrix as the vector under test. A Bayesian
Bidon, Stéphanie   +2 more
core   +1 more source

IMPROVE THE SAFETY OF AIR TRANSPORT, ESPECIALLY IN MILITARIZED TERRAIN, BY USE OF SIDE LOOKING AIRBORNE RADAR AND SPACE TIME ADAPTIVE PROCESSING [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport
The paper explores the potential to enhance aviation safety, particularly in militarized regions, by outfitting aircraft with Side Looking Airborne Radar (SLAR) and employing space-time adaptive processing (STAP) algorithms.
Błażej ŚLESICKI   +2 more
doaj   +1 more source

Bistatic MIMO Radar Clutter Suppression by Exploiting the Transmit Angle

open access: yesLeida xuebao, 2014
The transmit angle of bistatic radars can be obtained by introducing Multiple-Input Multiple-Output (MIMO) radar techniques. The Three-Dimensional (3D) clutter spectra, that is, the transmit angle, receive angle, and Doppler frequency, are introduced ...
Li Jun   +3 more
doaj   +1 more source

Non‐stationary clutter suppression method for bistatic airborne radar based on adaptive segmentation and space–time compensation

open access: yesIET Radar, Sonar & Navigation, 2021
Bistatic airborne radar has excellent performance due to the separate transmitter and receiver, but its clutter distribution is usually non‐stationary, which causes the performance of the traditional Space time adaptive processing (STAP) method to fail ...
Yuanyi Xiong, Wenchong Xie
doaj   +1 more source

Adaptive processing with signal contaminated training samples [PDF]

open access: yes, 2013
We consider the adaptive beamforming or adaptive detection problem in the case of signal contaminated training samples, i.e., when the latter may contain a signal-like component.
Bidon, Stéphanie   +3 more
core   +1 more source

Knowledge-Aided Multichannel Adaptive SAR/GMTI Processing: Algorithm and Experimental Results

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
The multichannel synthetic aperture radar ground moving target indication (SAR/GMTI) technique is a simplified implementation of space-time adaptive processing (STAP), which has been proved to be feasible in the past decades.
Di Wu, Daiyin Zhu, Zhaoda Zhu
doaj   +2 more sources

Clutter Mitigation in Space-based Early Warning Radar Using a Convolutional Neural Network

open access: yesLeida xuebao, 2022
Moving target indication using space-based early warning radar is important in military applications. For the space-based early warning radar, complicated non-stationary clutter characteristics are induced due to the high-speed movement of the radar ...
Keqing DUAN   +3 more
doaj   +1 more source

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