Results 31 to 40 of about 126,307 (254)

Space-Time Cascaded Processing-Based Adaptive Transient Interference Mitigation for Compact HFSWR

open access: yesRemote Sensing, 2023
In high-frequency (HF) radar systems, transient interference is a common phenomenon that dramatically degrades the performance of target detection and remote sensing.
Di Yao, Qiushi Chen, Qiyan Tian
doaj   +1 more source

Space-Time Adaptive Processing by Employing Structure-Aware Two-Level Block Sparsity

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Traditional radar space-time adaptive processing (STAP) cannot efficiently suppress heterogeneous clutter because of a small number of independent and identically distributed training snapshots.
Zhizhuo Jiang   +4 more
doaj   +1 more source

Deep learning for high‐resolution estimation of clutter angle‐Doppler spectrum in STAP

open access: yesIET Radar, Sonar & Navigation, 2022
Space‐time adaptive processing (STAP) methods can provide good clutter suppression potential in airborne radar systems. However, the performance of these methods is limited by the training samples' support in practical applications. To address this issue,
Keqing Duan   +3 more
doaj   +1 more source

ADMM-Based Low-Complexity Off-Grid Space-Time Adaptive Processing Methods

open access: yesIEEE Access, 2020
In this paper, we consider the problems of off-grid effects elimination and fast implementations for sparse recovery based space-time adaptive processing (SR-STAP) methods.
Zhongyue Li, Tong Wang
doaj   +1 more source

An Efficient Sparse Bayesian Learning STAP Algorithm with Adaptive Laplace Prior

open access: yesRemote Sensing, 2022
Space-time adaptive processing (STAP) encounters severe performance degradation with insufficient training samples in inhomogeneous environments. Sparse Bayesian learning (SBL) algorithms have attracted extensive attention because of their robust and ...
Weichen Cui   +3 more
doaj   +1 more source

Robust Space-Time Adaptive Processing Method for GNSS Receivers in Coherent Signal Environments

open access: yesRemote Sensing, 2023
In the coherent signal environments caused by multipath propagation, the interference suppression performance of the global navigation satellite systems (GNSS) receivers decreases sharply.
Zhen Meng, Feng Shen
doaj   +1 more source

Training sample selection for space–time adaptive processing based on multi-frames

open access: yesThe Journal of Engineering, 2019
As training samples are not identically distributed with cell under test (CUT) in heterogeneous environments, the performance of space–time adaptive processing (STAP) to suppress clutter degrades. To improve the performance of STAP, this study proposes a
Chenxiao Zhang   +3 more
doaj   +1 more source

Robust Constrained Inverse Beamforming Algorithm Based on Space Time Adaptive Processing

open access: yesIEEE Access, 2019
The power of Beidou satellite signals is very low, so it is vulnerable to interfering sources and in the presence of jamming. Therefore, a robust constrained inverse beamforming algorithm based on space-time adaptive processing is proposed, which can not
Yanping Liao   +3 more
doaj   +1 more source

A Space-Time Adaptive Processing Method Based on Sparse Reconstruction of Reverberation Interference

open access: yesXibei Gongye Daxue Xuebao, 2020
Aiming at the problem of how to obtain reverberation samples and estimate their covariance matrix in the space-time adaptive processing(STAP) of sonar system, a new space-time adaptive processing method is proposed based on sparse reconstruction of ...

doaj   +1 more source

Coprime arrays and samplers for space-time adaptive processing [PDF]

open access: yes2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015
This paper extends the use of coprime arrays and samplers for the case of moving sources. Space-time adaptive processing (STAP) plays an important role in estimating direction-of-arrivals (DOAs) and radial velocities of emitting sources. However, the detection performance is fundamentally limited by the array geometry and the temporal samplers at each ...
Chun-Lin Liu, Palghat P. Vaidyanathan
openaire   +2 more sources

Home - About - Disclaimer - Privacy