Results 31 to 40 of about 5,733 (189)

MIMO Antennas: Design Approaches, Techniques and Applications

Sensors, 2022
The excessive use of digital platforms with rapidly increasing users in the wireless domain enforces communication systems to provide information with high data rates, high reliability and strong transmission connection quality.
Preeti Sharma, Rakesh N. Tiwari, Prabhakar Singh, Pradeep Kumar, Binod K. Kanaujia   +4 more
doaj   +1 more source

Comparative Study of Electric Vehicle Propulsion Systems Using Field‐Oriented Controlled Dual PMSMs With Novel Control Strategies Based on an EPS Filter and a Fuzzy Logic Regulator for Enhanced Stability and Safety

Energy Science &Engineering, EarlyView.
The growing demand for electric vehicles (EVs) has driven research into improving propulsion control systems, focusing on performance, efficiency, and safety. This study addresses a gap in advanced control systems for EV differentials and presents two solutions.
Rachad Moumni, Idriss Benlaloui, Kouider Laroussi, Amor Fezzani, Mohamed Metwally Mahmoud, Vojtech Blazek, Daniel Eutyche Mbadjoun Wapet, Ezzeddine Touti   +7 more
wiley   +1 more source

Joint parameter estimation employing coherent passive MIMO radar

The Journal of Engineering, 2019
Passive multiple-input multiple-output radar is studied for the problem of joint estimation of target location and velocity. A general case is considered, where the signals of opportunity may be non-orthogonal and the clutter-plus-noise may be correlated.
Liming Wang, Qian He, Rick S. Blum, Huiyong Li   +3 more
doaj   +1 more source

Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects

Laser &Photonics Reviews, EarlyView.
A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand, Erwan Weckenmann, Jean‐Michel Vallée, Farshid Shateri, Zibo Zheng, Simon Levasseur, Bo Yang, Jiajian Chen, Ting Wang, Zihao Wang, Leslie A. Rusch, Wei Shi   +11 more
wiley   +1 more source

General space-time clutter model for multi-channel airborne radar

The Journal of Engineering, 2019
Ground clutter of looking-down airborne radar is spread in Doppler because of the platform motion, and thus the interested moving targets may be masked by the ground clutter.
Li Xinzhe, Xie Wenchong, Wang Yongliang, Ma Jie   +3 more
doaj   +1 more source

Three-Dimensional MIMO Channel Model with High-Mobility Wireless Communication Systems Using Leaky Coaxial Cable in Rectangular Tunnel

International Journal of Antennas and Propagation, 2021
With the rapid development of high-mobility wireless communication systems, e.g., high-speed train (HST) and metro wireless communication systems, more and more attention has been paid to the wireless communication technology in tunnel-like scenarios. In
Kai Zhang, Fangqi Zhang, Guoxin Zheng, Lei Cang   +3 more
doaj   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Spatial Constellation Design for MIMO Visible Light Communication Based on the Optimal Geometric Shaping

IEEE Photonics Journal
As a wireless communication which combines illumination and communication, visible light communication (VLC) has attracted great attention. In indoor VLC systems, multiple illumination devices are commonly employed, forming a natural multi-input multi ...
Jia-Ning Guo, Jian Zhang
doaj   +1 more source

Simplified LLR algorithm for m-QAM demodulation

The Journal of Engineering, 2019
Here, a simplified algorithm to calculate log-likelihood ratio (LLR) for m-QAM demodulation is proposed. Traditional method calculating LLR for m-QAM demodulation is supposed to do distance computing between any two constellation points so that the high ...
Xianle Cao, Yi Liu, Dongfang Hu
doaj   +1 more source

MU-Massive MIMO for UWA Communication [PDF]

2018 IEEE 88th Vehicular Technology Conference (VTC-Fall), 2018
The present paper considers the application of massive multiple-input multiple-output (MIMO) to a multi-user (MU) underwater acoustic (UWA) communication system. In the scope to achieve a high throughput within a limited acoustic bandwidth, we consider filterbank multicarrier (FBMC) modulation for waveform shaping instead of the widely used orthogonal ...
Mohammud Junaid Bocus, Angela Doufexi, Dimitris Agrafiotis   +2 more
openaire   +2 more sources