Results 21 to 30 of about 28,620 (299)

A New Method of Measurement Matrix Optimization for Compressed Sensing Based on Alternating Minimization

Mathematics, 2021
In this paper, a new method of measurement matrix optimization for compressed sensing based on alternating minimization is introduced. The optimal measurement matrix is formulated in terms of minimizing the Frobenius norm of the difference between the ...
Renjie Yi, Chen Cui, Biao Wu, Yang Gong
doaj   +1 more source

A Method of Constructing Measurement Matrix for Compressed Sensing by Chebyshev Chaotic Sequence

Entropy, 2020
In this paper, the problem of constructing the measurement matrix in compressed sensing is addressed. In compressed sensing, constructing a measurement matrix of good performance and easy hardware implementation is of interest. It has been recently shown
Renjie Yi, Chen Cui, Yingjie Miao, Biao Wu   +3 more
doaj   +1 more source

Efficient Waveform Design Method for Target Estimation Under the Detection and Peak-to-Average Power Ratio Constraints in Cognitive Radar

IEEE Access, 2019
This paper addresses the waveform design problem to estimate the target impulse response (TIR) of the temporally correlated extended target in a cognitive radar, subject to a detection constraint and a peak-to-average power ratio constraint.
Tianduo Hao, Chen Cui, Yang Gong
doaj   +1 more source

Detection of Size Modulation Covert Channels Using Countermeasure Variation [PDF]

, 2019
Network covert channels enable stealthy communications for malware and data exfiltration. For this reason, developing effective countermeasures for these threats is important for the protection of individuals and organizations.
Wendzel, Steffen, Daniela Eller, Link,Florian, Wojciech Mazurczyk, Eller, Daniela, Mazurczyk, Wojciech, Florian Link, Eller,Daniela, Link, Florian, Wendzel,Steffen, Steffen Wendzel, Mazurczyk,Wojciech   +11 more
core   +2 more sources

Compact UWB MIMO Vivaldi Antenna With Dual Band-Notched Characteristics

IEEE Access, 2019
A novel ultra-wideband (UWB) multiple-input multiple-output (MIMO) Vivaldi antenna with dual band-notched characteristics is presented and fabricated. The antenna is comprised of an improved ground plane and two microstrip feeding lines with a compact ...
Zhenya Li, Chengyou Yin, Xiaosong Zhu
doaj   +1 more source

Lymphocyte Membrane‐ and 12p1‐Dual‐Functionalized Nanoparticles for Free HIV‐1 Trapping and Precise siRNA Delivery into HIV‐1‐Infected Cells

Advanced Science, 2023
Despite the success of small interfering RNA (siRNA) in clinical settings and its potential value in human immunodeficiency virus (HIV) therapy, the rapid clearance and absence of precise delivery to target cells still hinder the therapeutic effect of ...
Jinbang Zhang, Jingwan Han, Hui Li, Zhengyang Li, Pengfei Zou, Jiaxin Li, Te Zhao, Junwei Che, Yang Yang, Meiyan Yang, Yuli Wang, Wei Gong, Zhiping Li, Lin Li, Chunsheng Gao, Haihua Xiao   +15 more
doaj   +1 more source

Dynamic countermeasure knowledge for intrusion response systems

, 2020
Significant advancements in Intrusion Detection Systems has led to improved alerts. However, Intrusion Response Systems which aim to automatically respond to these alerts, is a research area which is not yet advanced enough to benefit from full ...
Hughes, Kieran, Kieran Hughes, Sezer, Sakir, Sakir Sezer, Kieran McLaughlin, McLaughlin, Kieran; id_orcid   +5 more
core   +1 more source

A Multidimensional Matrix Completion Method for 2-D DOA Estimation with L-Shaped Array

Sensors
This paper focuses on two-dimensional (2-D) direction-of-arrival (DOA) estimation for an L-shaped array. While recent studies have explored sparse methods for this problem, most exploit only the cross-correlation matrix, neglecting self-correlation ...
Haoyue Zhang, Junpeng Shi, Zhihui Li, Shuyun Shi   +3 more
doaj   +1 more source

Prevention of bone loss during 56 days of strict bed rest by side-alternating resistive vibration exercise

, 2010
Bed rest is a recognized model for muscle atrophy and bone loss in space flight and in clinical medicine. We hypothesized that whole body vibration in combination with resistive exercise (RVE) would be an effective countermeasure.
Schubert, Harald, Gast, Ulf, Beller, G., Stegeman, Dick F., Stegeman, D.F., Schiessl, Hans, Mulder, Edwin, de Haan, A., Felsenberg, D., de Haan, Arnold, Armbrecht, G., Buehring, Björn, Haan, A. de, Rittweger, J., Rittweger, Jörn, Buehring, B., Armbrecht, Gabriele, Mulder, E., Schiessl, H., Gast, U., Beller, Gisela, Mulder, Edwin R., Dimeo, Fernando C., Schubert, H., Dimeo, F., Felsenberg, Dieter, Dimeo, Fernando   +26 more
core   +1 more source

Red Alert: a cognitive countermeasure to mitigate attentional tunneling [PDF]

, 2020
Attentional tunneling, that is the inability to detect unexpected changes in the environment, has been shown to have critical consequences in air traffic control.
Frédéric Dehais, Julie Saint-Lot, Dehais, Frédéric, Saint-Lot, Julie, Imbert, Jean-Paul, Jean-Paul Imbert   +5 more
core   +1 more source