Performance Improvement for SAR Tomography Based on Local Plane Model
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Multilook approaches have been applied in synthetic aperture radar (SAR) tomography (TomoSAR), for improving the density and regularity of persistent scatterers reconstructed from multipass SAR images in both rural and urban regions. Multilook operations
Wenkang Liu +4 more
doaj +1 more source
Passive MIMO Radar Detection with Unknown Colored Gaussian Noise
Remote Sensing, 2021 The target detection of the passive multiple-input multiple-output (MIMO) radar that is comprised of multiple illuminators of opportunity and multiple receivers is investigated in this paper.
Yongjun Liu +5 more
doaj +1 more source
EC-GLRT: Detecting Weak Plumes in Non-Gaussian Hyperspectral Clutter Using an Elliptically-Contoured Generalized Likelihood Ratio Test [PDF]
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008 We investigate the behavior of a detector for weak gaseous plumes in hyperspectral imagery that can be derived in terms of a generalized likelihood ratio test (GLRT) applied to an elliptically-contoured (EC) model for the distribution of background clutter.
James Theiler, Bernard R. Foy
openaire +1 more source
Detection of an unknown rank-one component in white noise [PDF]
, 2006 We consider the detection of an unknown and arbitrary rank-one signal in a spatial sector scanned by a small number of beams. We address the problem of finding the maximal invariant for the problem at hand and show that it consists of the ratio of the ...
Louis L. Scharf +3 more
core +2 more sources
CFAR matched direction detector [PDF]
, 2006 In a previously published paper by Besson et al., we considered the problem of detecting a signal whose associated spatial signature is known to lie in a given linear subspace, in the presence of subspace interference and broadband noise of known level ...
Besson, Olivier, Scharf, Louis
core +1 more source
Matched direction detectors and estimators for array processing with subspace steering vector uncertainties [PDF]
, 2005 In this paper, we consider the problem of estimating and detecting a signal whose associated spatial signature is known to lie in a given linear subspace but whose coordinates in this subspace are otherwise unknown, in the presence of subspace ...
Besson, Olivier +2 more
core +1 more source
GDTF: Generalized Detection Theoretic Framework for T-Wave Alternans Analysis
IEEE Access, 2020 Detection and estimation of t-wave alternans (TWA) in presence of indispensable physiological artifacts is still a challenging task, as in most of the cases, the signal of interest resides well below the noise levels.
Ehsan Ullah +2 more
doaj +1 more source
Echo Cancellation : the generalized likelihood ratio test for double-talk vs. channel change [PDF]
, 2009 Echo cancellers are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation.
Bermudez, José Carlos Moreira +2 more
core +2 more sources
Low-Grazing Angle Detection in Compound-Gaussian Clutter with Hybrid MIMO Radar
International Journal of Antennas and Propagation, 2013 This paper focuses on the target detection in low-grazing angle using a hybrid multiple-input multiple-output (MIMO) radar systems in compound-Gaussian clutter, where the multipath effects are very abundant.
Jincan Ding +4 more
doaj +1 more source
The adaptive coherence estimator is the generalized likelihood ratio test for a class of heterogeneous environments [PDF]
, 2008 The adaptive coherence estimator (ACE) is known to be the generalized likelihood ratio test (GLRT) in partially homogeneous environments, i.e., when the covariance matrix Ms of the secondary data is proportional to the covariance matrix Mp of the vector ...
Besson, Olivier +2 more
core +2 more sources