Results 51 to 60 of about 1,235,187 (346)

A Ship Path Tracking Control Method Using a Fuzzy Control Integrated Line-of-Sight Guidance Law

Journal of Marine Science and Engineering
A fuzzy control improvement method is proposed with an integral line-of-sight (ILOS) guidance principle to meet the needs of autonomous navigation and high-precision control of ship trajectories.
Bing Han, Zaiyu Duan, Zhouhua Peng, Yuhang Chen   +3 more
semanticscholar   +1 more source

Low-latency time-of-flight non-line-of-sight imaging at 5 frames per second [PDF]

Nature Communications, 2020
Non-Line-Of-Sight (NLOS) imaging aims at recovering the 3D geometry of objects that are hidden from the direct line of sight. One major challenge with this technique is the weak available multibounce signal limiting scene size, capture speed, and ...
J. Nam, E. Brandt, S. Bauer, Xiaochun Liu, M. Renna, A. Tosi, Eftychios Sifakis, A. Velten   +7 more
semanticscholar   +1 more source

Optimum Model for Tracking of Moving Objects

Pakistan Journal of Engineering & Technology, 2023
 In wireless communication, it is a challenge to find the accurate position of moving objects. The presented work proposes the GPS receiver to measure the position and velocity of moving objects.
Muzaffar Hussain, Lubna Farhi, Farhan Ur Rehman   +2 more
doaj   +1 more source

A far-UV survey of three hot, metal-polluted white dwarf stars: WD0455-282, WD0621-376, and WD2211-495 [PDF]

, 2019
Using newly obtained high-resolution data ($R\sim{1\times{10}^{5}}$) from the \textit{Hubble Space Telescope}, and archival UV data from the \textit{Far Ultraviolet Spectroscopic Explorer} we have conducted a detailed UV survey of the three hot, metal ...
Ayres, T., Bainbridge, M., Barrow, J. D., Barstow, M. A., Holberg, J. B., Hu, J., Lee, C. C., Preval, S. P., Reindl, N., Webb, J. K.   +9 more
core   +2 more sources

Capacity of Line-of-Sight MIMO Channels [PDF]

2020 IEEE International Symposium on Information Theory (ISIT), 2020
H. Do and N. Lee are supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project SRFC-IT1702-04. Prof. Lozano is supported by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974, and by MINECO’s Projects RTI2018-102112 and RTI2018-101040.
Do, Heedong, Lee, Namyoon, Lozano, Angel
openaire   +2 more sources

Unmanned Surface Vessel–Unmanned Aerial Vehicle Cooperative Path Following Based on a Predictive Line of Sight Guidance Law

Journal of Marine Science and Engineering
This paper explores the cooperative control of unmanned surface vessels (USVs) and unmanned aerial vehicles (UAVs) in maritime rescue and coastal surveillance.
Hugan Zhang, Jiaming Fan, Xianku Zhang, Haitong Xu, C. Guedes Soares   +4 more
semanticscholar   +1 more source

Phasor field diffraction based reconstruction for fast non-line-of-sight imaging systems

Nature Communications, 2020
Non-line-of-sight (NLOS) imaging recovers objects using diffusely reflected indirect light using transient illumination devices in combination with a computational inverse method.
Xiaochun Liu, S. Bauer, A. Velten
semanticscholar   +1 more source

Empowering IoT: leveraging data sensor communication with LoRAWAN in diverse environments

Acta Polytechnica
The Internet of Things (IoT) connects countless devices, such as sensors and actuators, necessitating an efficient long-range communication technology.
Noprianto Noprianto, Habibie Ed Dien, Septian Enggar Sukmana, Fayyadh Al Baity, Mustika Mentari   +4 more
doaj   +1 more source

Optimal Constrained Wireless Emergency Network Antennae Placement [PDF]

, 2018
With increasing number of mobile devices, newly introduced smart devices, and the Internet of things (IoT) sensors, the current microwave frequency spectrum is getting rapidly congested.
Gaikwad, Swapnil Mohan
core   +1 more source

CO Line Emission and Absorption from the HL Tau Disk: Where is all the dust?

, 2005
We present high-resolution infrared spectra of HL Tau, a heavily embedded young star. The spectra exhibit broad emission lines of hot CO gas as well as narrow absorption lines of cold CO gas. The column density for this cooler material (7.5+/-0.2 x 10^18
Carr J. S., Craig Kulesa, Monin J. L., Sean D. Brittain, Terrence W. Rettig, Theodore Simon, Whittet D. C. B., Whittet D. C. B.   +7 more
core   +1 more source