Results 21 to 30 of about 47,616 (177)

A fast and gridless STAP algorithm based on mixed‐norm minimisation and the alternating direction method of multipliers

open access: yesIET Radar, Sonar & Navigation, 2021
Sparse recovery (SR) based space‐time adaptive processing (STAP) methods have received much attention recently due to their dramatically reduced requirements of training samples.
Zhongyue Li, Tong Wang, Yuyu Su
doaj   +1 more source

Maximal Dependence Capturing as a Principle of Sensory Processing

open access: yesFrontiers in Computational Neuroscience, 2022
Sensory inputs conveying information about the environment are often noisy and incomplete, yet the brain can achieve remarkable consistency in recognizing objects.
Rishabh Raj   +4 more
doaj   +1 more source

A Dynamical System With Fixed Convergence Time for Sparse Recovery

open access: yesIEEE Access, 2019
The sparse recovery (SR) algorithm, under the premise that signals are sparse, can be divided into two categories. One is a digital discrete method implemented via lots of iterative computations and the other is a continuous method implemented via analog
Junying Ren   +4 more
doaj   +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 Joint Doppler Frequency Shift and DOA Estimation Algorithm Based on Sparse Representations for Colocated TDM-MIMO Radar

open access: yesJournal of Applied Mathematics, 2014
We address the problem of a new joint Doppler frequency shift (DFS) and direction of arrival (DOA) estimation for colocated TDM-MIMO radar that is a novel technology applied to autocruise and safety driving system in recent years.
Tao Chen, Huanxin Wu, Lutao Liu
doaj   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

A Grid-Less Total Variation Minimization-Based Space-Time Adaptive Processing for Airborne Radar

open access: yesIEEE Access, 2020
Sparse recovery (SR) based space-time adaptive processing (STAP) has attracted much attention due to its small requirement of snapshots in the estimation of the clutter plus noise covariance matrix (CNCM).
Yuyu Su   +3 more
doaj   +1 more source

Activities and participation after primary total hip arthroplasty; posterolateral versus direct anterior approach in 860 patients

open access: yesActa Orthopaedica, 2022
Background and purpose: In the past decade, a shift occurred in surgical total hip arthroplasty (THA) approaches to the posterolateral (PLA) and direct anterior approach (DAA).
Daisy A J M Latijnhouwers   +6 more
doaj   +1 more source

An Efficient Sparse Recovery STAP Algorithm for Airborne Bistatic Radars Based on Atomic Selection under the Bayesian Framework

open access: yesRemote Sensing
The traditional sparse recovery (SR) space-time adaptive processing (STAP) algorithms are greatly affected by grid mismatch, leading to poor performance in airborne bistatic radar clutter suppression.
Kun Liu, Tong Wang, Weijun Huang
doaj   +1 more source

Deterministic-aided single dataset STAP method based on sparse recovery in heterogeneous clutter environments

open access: yesEURASIP Journal on Advances in Signal Processing, 2018
Traditional space-time adaptive processing (STAP) usually needs many independent and identically distributed (i.i.d) training datasets for estimating clutter covariance matrix (CCM).
Wei Wang   +3 more
doaj   +1 more source

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