Results 1 to 10 of about 12,529 (209)

Sea Clutter Suppression by Atomic Norm Minimisation in Frequency Diverse Array‐Space‐Time Adaptive Processing Radar Under Range Ambiguity

IET Radar, Sonar & Navigation
Sea clutter suppression is a hot topic for airborne radar. Space‐time adaptive processing (STAP) is a useful approach to address this issue. Currently, range ambiguity is a problem to restrict conventional STAP performance.
Zhao Wang, Xuecong Li, Chao Xu, Bo Wu, Di Song   +4 more
doaj   +1 more source

Reduced-Dimension FDA-STAP for Range-Ambiguous Clutter Rejection Under Limited Snapshots

Eng
Space-time adaptive processing (STAP) has been widely recognized as an effective technique for suppressing clutter in airborne radar systems. Nevertheless, range ambiguity can seriously affect the clutter rejection capability of conventional STAP methods.
Di Song, Chunyu Song, Qiqi Li, Jinmin Shi   +3 more
doaj   +1 more source

Anti-jamming method for STAP based on a bi-phase random-coded signal

The Journal of Engineering, 2019
The scattered-wave sweeping frequency jamming occupies many space-time adaptive processing (STAP) degrees of freedom, which results in a serious decline in STAP performance. To solve this problem, an anti-jamming method of STAP based on a bi-phase random-
Weijie Ye, Xiaopeng Yang, Yuze Sun, Shuai Li   +3 more
doaj   +1 more source

Patient involvement in basic rheumatology research at Nijmegen: a three year’s responsive evaluation of added value, pitfalls and conditions for success

BMC Rheumatology, 2022
Background Empirical evidence for effective patient-researcher collaboration in basic research is lacking. This study aims to explore good working models and impact of patient involvement in basic rheumatology research and to identify barriers and ...
Maarten P. T. de Wit, M. I. Koenders, Y. Neijland, F. H. J. van den Hoogen, P. M. van der Kraan, F. A. J. van de Loo, H. Berkers, M. Lieon, A. van Caam, C. van den Ende   +9 more
doaj   +1 more source

An Effective Reduced-Dimension EPC-STAP for Limited Snapshots Under Range Ambiguity

Eng
Space-time adaptive processing (STAP) is regarded as a highly effective approach for clutter mitigation in airborne radar applications. However, in practical range-ambiguous scenarios, the clutter suppression performance of traditional STAP algorithms ...
Yue Zhao, Zhao Wang, Xuecong Li, Chao Xu, Di Song, Jinmin Shi   +5 more
doaj   +1 more source

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

EURASIP 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, Lin Zou, Xuegang Wang, Yang Yang   +3 more
doaj   +1 more source

Suppression of Jammer Multipath in GNSS Antenna Array Receiver

Remote Sensing, 2022
Interference multipath is an important factor to affect the anti-jamming performance for the global navigation satellite system (GNSS) antenna array receiver. However, interference multipath must be considered in practical application. In this paper, the
Long Huang, Zukun Lu, Zhibin Xiao, Chao Ren, Jie Song, Baiyu Li   +5 more
doaj   +1 more source

Direct Data Domain Sparsity-Based STAP Utilizing Subaperture Smoothing Techniques

International Journal of Antennas and Propagation, 2015
We propose a novel direct data domain (D3) sparsity-based space-time adaptive processing (STAP) algorithm utilizing subaperture smoothing techniques for airborne radar applications.
Zhaocheng Yang, Rui Fa, Yuliang Qin, Xiang Li, Hongqiang Wang   +4 more
doaj   +1 more source

FDA-STAP by Shrinkage Algorithm Under Range Ambiguity for Limited Training Samples

IEEE Access
When airborne radar detects targets, space-time adaptive processing (STAP) performs a vital role in clutter rejection. As is known, clutter rejection is limited by range ambiguity.
Di Song, Chunyu Song, Dawei Liu, Zhao Wang   +3 more
doaj   +1 more source

IDENTIFICATION OF Staphylococcus sp. STRAINS ISOLATED FROM POSITIVE WIDAL BLOOD BASED ON 16S rRNA GENE SEQUENCES

International Journal of Science and Engineering, 2015
The purpose of this study is to identify 8 strains of Staphylococcus genus members isolated from positive Widal blood (4 strains of Staphylococcus saprophyticus, 1 strain of Staphylococcus warneri, 2 strains of Staphylococcus hominis, 1 strain of ...
Sri Darmawati
doaj   +1 more source