|
|
|
|
|
Xueyang Zeng, Gang Chen, Huabo Shi, Sijia Wang and Peng Shi
Aiming at the problem of ultra-low-frequency oscillation (ULFO) in power systems, with an oscillation frequency lower than 0.1 Hz, an oscillation suppression control method is proposed. Firstly, the mathematical modeling of the system is carried out, and...
ver más
|
|
|
|
|
|
|
|
|
|
|
Huan Wang, Erzheng Fang, Mingze Wu, Lianjin Hong and Zongru Li
When an underwater target moves in viscous fluid, it may cause the periodic movement of the surrounding fluid and generate ultra-low-frequency (ULF) gravity waves. The initial domain of the gravitational surface wave propagating above the moving target i...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lixia Li, Haiteng Hu and Xiaolan Wu
In this paper, we propose an acoustic black hole radial elastic metamaterial (AREM). Through the study of its dispersion relations, it is found that, compared with the conventional elastic metamaterial, the AREM gathers energy at the tip of the black hol...
ver más
|
|
|
|
|
|
|
|
|
|
|
Junning Cui, Wei Li, Xingyuan Bian, Zhangqiang He and Limin Zou
High-performance magnetic circuit offering uniform magnetic flux density (MFD) along ultra-long stroke is the key to develop a vibration exciter for ultra-low-frequency (ULF) vibration calibration. In this paper, a rectangular closed double magnetic circ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhifeng Qi and Xiuting Sun
In complex and extreme environments, such as pipelines and polluted waters, gait programming has great significance for multibody segment locomotion robots. The earthworm-like locomotion robot is a representative multibody bionic robot, which has the cha...
ver más
|
|
|
|
|
|
|
|
|
|
|
Muhammad Faisal Siddiqui, Mukesh Kumar Maheshwari, Muhammad Raza and Aurangzeb Rashid Masud
This article presents the design and optimization of a tunable quadrature differential LC CMOS voltage-controlled oscillator (VCO) with a D flip-flop (DFF) frequency divider. The VCO is designed for the low-power and low-phase-noise applications of 2.4 G...
ver más
|
|
|
|
|
|
|
|
|
|
|
Krzysztof Achtenberg, Graziella Scandurra, Janusz Mikolajczyk, Carmine Ciofi and Zbigniew Bielecki
This paper presents the design and testing of an ultra-low-noise transimpedance amplifier (TIA) for low-frequency noise measurements on low-impedance (below 1 kO) devices, such as advanced IR photodetectors. When dealing with low-impedance devices, the m...
ver más
|
|
|
|
|
|
|
|
|
|
|
Husam Rajab, Fatma Benkhelifa and Tibor Cinkler
The new era of IoT brings the necessity of smart synergy for diverse communication and computation entities. The two extremes are, on the one hand, the 5G Ultra-Reliable Low-Latency Communications (URLLC) required for Industrial IoT (IIoT) and Vehicle Co...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sepideh Hassani, Chih-Hung Chen and Natalia K. Nikolova
This paper addresses the design of ultra-wideband (UWB) impedance matching networks operating in the unlicensed 3.1?10.6 GHz frequency band for low-power applications. It improves the simplified real frequency technique (SRFT) by adding a realizability c...
ver más
|
|
|
|
|
|
|
|
|
|
|
Naveed and Jeff Dix
A low-power delay-locked loop (DLL)-based frequency multiplier is presented. The multiplier is designed in 22 nm FDSOI and achieves 8× multiplication. The proposed DLL uses a new simple duty cycle correction circuit and is XOR logic-based for frequency m...
ver más
|
|
|
|
|
|
|
|
|
|
|
Matteo Gemignani and Salvo Marcuccio
Sounding balloons, available at very low cost from commercial vendors and operable with minimal training, have an excellent potential as testing platforms in the near-space environment. The work reported here was motivated by the need to perform an exper...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shengying Yang, Huibin Qin, Xiaolin Liang and Thomas Aaron Gulliver
Life sign detection is important in many applications, such as locating disaster victims. This can be difficult in low signal to noise ratio (SNR) and through-wall conditions. This paper considers life sign detection using an impulse ultra-wideband (UWB)...
ver más
|
|
|
|
|
|
|
|
|
|
|
Peng Zhao, Zhensen Wu, Yushi Zhang, Jinpeng Zhang, Xinyu Xu and Jiaji Wu
The Doppler spectra of sea echoes, which contain abundant information on floating scatterers, are important for exploring the characteristics of sea clutter. Using sea clutter data at low grazing angles observed by a coherent ultra-high frequency (UHF) r...
ver más
|
|
|
|
|
|
|
|
|
|
|
Liu Jun, Luo Zhongqiang and Xiong Xingzhong
An important function of next-generation (5G) and beyond mobile communication systems is aim to provide thousand-fold capacity growth and to support high-speed data transmission up to several megabits per second. However, the research community and indus...
ver más
|
|
|
|
|
|
|
|
|
|
|
Albert Sabban
The development of compact wearable antennas and transceivers for communication, IoT (Internet of Things), and biomedical systems will be presented in this paper. Development of Compact efficient wearable antennas is one of the major challenges in develo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Maximilien Charlier, Remous-Aris Koutsiamanis and Bruno Quoitin
In this paper, we present and evaluate an ultra-wideband (UWB) indoor processing architecture that allows the performing of simultaneous localizations of mobile tags. This architecture relies on a network of low-power fixed anchors that provide forward-r...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fadi R. Shahroury, Hani H. Ahmad and Ibrahim Abuishmais
This work presents various essential features and design aspects of a single-inductor, common-output, and multi-string White Light Emitting Diode (WLED) driver for low-power portable devices. High efficiency is one of the main features of such a device. ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kyungki Kim, Sining Li, Milad Heydariaan, Nour Smaoui, Omprakash Gnawali, Wonho Suh, Min Jae Suh and Jung In Kim
With the advancement of low-power and low-cost wireless technologies in the past few years, the Internet of Things (IoT) has been growing rapidly in numerous areas of Industry 4.0 and smart homes. With the development of many applications for the IoT, in...
ver más
|
|
|
|
|
|
|
|
|
|
|
Bing Han, Danyang Qin, Ping Zheng, Lin Ma and Merhawit Berhane Teklu
With the development of smart cities, the use of unmanned aerial vehicles (UAVs) for interactive information exchange between air and ground can provide effective support for the deployment of emergency work. However, the existing UAV air-to-ground chann...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhuo Li, Huixiang Ling and Xiao Zhao
There are plans to set up a space-based gravitational wave observatory that will use an ultra-large-scale laser interferometer in space to detect medium- and low-frequency gravitational waves. Both heliocentric and geocentric formations adopt the method ...
ver más
|
|
|
|
|
|