Results 101 to 110 of about 65,492 (218)

Approximation of L\"owdin Orthogonalization to a Spectrally Efficient Orthogonal Overlapping PPM Design for UWB Impulse Radio

, 2011
In this paper we consider the design of spectrally efficient time-limited pulses for ultrawideband (UWB) systems using an overlapping pulse position modulation scheme.
Aldroubi, Aldroubi, Aldroubi, Anderson, Bar-David, Benedetto, Berger, Boor, Böttcher, Casazza, Chan, Christensen, Daubechies, Davidson, Davidson, Davis, Dotlic, Gordillo, Gray, Gröchenig, Gutierrez-Gutierrez, Güney, Jacobs, Janssen, Janssen, Jia, Landshoff, Lapidoth, li Wang, Luo, Löwdin, Löwdin, Meyer, Middleton, Nakache, Nakache, Parr, Proakis, Ramirez-Mireles, Simon, Strang, Sturm, Sun, Tian, Trees, Villarreal-Reyes, Win, Win, Win, Wu, Wu, Zeisberg, Zhu   +52 more
core   +1 more source

Accurate Permittivity Measurements for Microwave Imaging via Ultra-Wideband Removal of Spurious Reflectors

Sensors, 2010
The use of microwave imaging is becoming more prevalent for detection of interior hidden defects in manufactured and packaged materials. In applications for detection of hidden moisture, microwave tomography can be used to image the material and then ...
Mathew G. Pelletier, Joseph A. Viera, John Wanjura, Greg Holt   +3 more
doaj   +1 more source

Design of a compact UWB antenna with a partial ground plane on epoxy woven glass material

Science and Engineering of Composite Materials, 2017
A compact ultra-wideband (UWB) antenna is presented in this paper with a partial ground plane on epoxy woven glass material. The study is discussed to comprehend the effects of various design parameters with explicit parametric analyses.
Islam Md. Moinul, Islam Mohammad Tariqul, Faruque Mohammad Rashed Iqbal, Aldhaheri Rabah W., Samsuzzaman Md.   +4 more
doaj   +1 more source

Simulation Platform for Wireless Sensor Networks Based on Impulse Radio Ultra Wide Band

, 2009
Impulse Radio Ultra Wide Band (IR-UWB) is a promising technology to address Wireless Sensor Network (WSN) constraints. However, existing network simulation tools do not provide a complete WSN simulation architecture, with the IR-UWB specificities at the ...
Berthe, Abdoulaye, Dragomirescu, Daniela, Lecointre, Aubin, Plana, Robert   +3 more
core   +1 more source

Mine personnel cooperative location algorithm based on ultra-wideband

河南理工大学学报. 自然科学版
ObjectivesTo address the issues of positioning blind zones， low localization accuracy for personnel at the working face， and non-line-of-sight （NLOS） errors in underground mines， a cooperative localization algorithm based on ultra-wideband （UWB ...
Wang Lei, Zhang Wenbo, Yu Jinxia, He Junyi, Yuan Ruifu, Gao Yan   +5 more
doaj   +1 more source

Locking control of underground signal lights based on improved Kalman filter and state observer

Gong-kuang zidonghua
During underground ramp transportation in non-coal mines, traditional signal light locking control method is ineffective due to insufficient UWB dynamic positioning accuracy, long sampling interval of vehicle positioning cards, and data loss.
WANG Xueming, HUANG Jingzhi, SONG Chuanzhi, WU Daifeng   +3 more
doaj   +1 more source

Underground personnel positioning system based on 5G+UWB and inertial navigation technology

Gong-kuang zidonghua
In practical applications of coal mine personnel positioning systems, there are problems of insufficient equipment computing power and storage resources.
LI Mingfeng, LI Yan, LIU Yong, WU Xuesong, XU Jisheng, CHANG Jianming, WANG Tao, PAN Hongguang   +7 more
doaj   +1 more source

„Śmierć, pogrzeb i modlitwa za zmarłych w Kościele prawosławnym”. Recenzja monografii abp. prof. zw. Jerzego Pańkowskiego

Elpis, 2019
Marek Ławreszuk
doaj   +1 more source

An Improved Robust ESKF Fusion Positioning Method with a Novel UWB-VIO Initialization. [PDF]

Sensors (Basel)
Wang C, Li B, Duan Y, Sui X, Shi Z, Gao S, Zhang Z, Chen J.   +7 more
europepmc   +1 more source

A filtering-enhanced MIMO antenna architecture for next-generation multi-user satellite communication. [PDF]

Sci Rep
Bouchouicha D, Fathallah W, Al-Rasheed A, Adubango MS.   +3 more
europepmc   +1 more source