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Byung Moo Lee and Youngok Kim
It is well known that large scale multiple-input multiple-output (LS-MIMO) systems are very attractive technology to increase both spectral efficiency (SE) and energy efficiency (EE). However, one of big obstacles to the realization of the LS-MIMO system...
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Dariusz Zmyslowski and Jan M. Kelner
The development of new telecommunication services requires the implementation of advanced technologies and the next generations of networks. Currently, the Long-Term Evolution (LTE) is a widely used standard. On the other hand, more and more mobile netwo...
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Jingxue Bi, Lu Huang, Hongji Cao, Guobiao Yao, Wengang Sang, Jie Zhen and Yuying Liu
Many indoor fingerprinting localization methods are based on signal-domain distances with large localization error and low stability. An improved fingerprinting localization method using a clustering algorithm and dynamic compensation was proposed. In th...
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Hidemi Takahashi, Mitsuru Kurita, Hidetoshi Iijima and Seigo Koga
This study proposes a unique approach to convert a voltage signal obtained from a hot-wire anemometry to flow velocity data by making a slight modification to existing temperature-correction methods. The approach was a simplified calibration method for t...
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Yuxiang Ma and Yunhua Li
This paper deals with the robust control method for permanent magnet synchronous motor (PMSM) speed-regulation system based on active disturbance compensation. Different from the classical PMSM disturbance compensation scheme, a novel disturbance feed-fo...
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Agbotiname Lucky Imoize, Friday Udeji, Joseph Isabona and Cheng-Chi Lee
Mobile broadband (MBB) services in Lagos, Nigeria are marred with poor signal quality and inconsistent user experience, which can result in frustrated end-users and lost revenue for service providers. With the introduction of 5G, it is becoming more nece...
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Lesek Franek and Petr Fiedler
Most power line communication (PLC) models are designed to date simulate power lines as two-wire lines. However, in alternating current (AC) electrical distribution, the two-wire option is seldom applied, and medium-voltage lines are most often based on ...
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Patrik Flegner, Ján Kacur, Milan Durdán and Marek Laciak
In the presented research, methods of processing the vibrational signal of acceleration from horizontal drilling rig aggregates were applied. The significance of the given study is that signal processing methods have not yet been applied to such an exten...
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Denis Manul?chev, Andrey Tyshchenko, Mikhail Fershalov and Pavel Petrov
3D sound propagation modeling in the context of acoustic noise monitoring problems is considered. A technique of effective source spectrum reconstruction from a reference single-hydrophone measurement is discussed, and the procedure of simulation of soun...
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Pawel S. Dabrowski, Cezary Specht, Andrzej Felski, Wladyslaw Koc, Andrzej Wilk, Krzysztof Czaplewski, Krzysztof Karwowski, Krzysztof Jaskólski, Mariusz Specht, Piotr Chrostowski and Jacek Szmaglinski
When used at sea, satellite compasses are capable of determining the course of a sailing vessel with high accuracy. It is difficult to verify the accuracy declared by the device manufacturer under such conditions, as it is difficult to define a reliable ...
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Christos Yfoulis
This article addresses the problem of enhancing the performance of boost DC–DC converters that are already compensated either in voltage-mode by a common proportional–integral–derivative (PID, Type III) primary controller or in current-...
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Haopeng Zhang, Bo Yuan, Bo Dong and Zhiguo Jiang
No-reference (NR) image quality assessment (IQA) objectively measures the image quality consistently with subjective evaluations by using only the distorted image. In this paper, we focus on the problem of NR IQA for blurred images and propose a new no-r...
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Lei Li, Xiaobao Zeng, Xinpeng Pan, Ling Peng, Yuyang Tan and Jianxin Liu
Microseismic monitoring plays an essential role for reservoir characterization and earthquake disaster monitoring and early warning. The accuracy of the subsurface velocity model directly affects the precision of event localization and subsequent process...
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Feng Deng, Shenghua Zhang and Ning Qin
At transonic flight conditions, the buffet caused by the shockwave/boundary-layer interaction can degrade aircraft performance and even threaten their safety. In this paper, a closed-loop control using an active shock control bump (SCB) has been proposed...
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Vincenzo Benedetto, Francesco Gissi, Gioele Ciaparrone and Luigi Troiano
Gravitational wave research presents a range of intriguing challenges, each of which has driven significant progress in the field. Key research problems include glitch classification, glitch cancellation, gravitational wave denoising, binary black hole s...
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Fanhao Meng, Yong Ma, Yongjun Xia, Yimin Ma and Ming Jiang
This paper investigates system identification algorithms for modal identification of frame structures, such as a suspension bridge and an overhead transmission line-crossing frame, using ambient vibration measurements. The modal identification procedures...
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Weiwei Qi, Mingbo Tong, Qi Wang, Wei Song and Hunan Ying
In this research, the design of a robust curved-line path-following control system for fixed-wing unmanned aerial vehicles (FWUAVs) affected by uncertainties on the latitude plane is studied. This is undertaken to enhance closed-loop system robustness un...
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Xin Qi, Chunyang Sheng, Yongbao Guo, Tao Su and Haixia Wang
Aiming at the problem that online parameter identification, based on the Model Reference Adaptive System (MRAS), is easily affected by the high-frequency noise of the sensor, an improved MRAS, based on variable bandwidth linear Active Disturbance Rejecti...
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Anna Christina Situmorang, Muhammad Suryanegara, Dadang Gunawan and Filbert H. Juwono
In Indonesia, there is still a disparity in telecommunications access, with most rural areas experiencing ?no signal? or ?blank spots.? In contrast, urban areas enjoy modern and societally-beneficial technologies. A comprehensive framework is needed to a...
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Feilong Ding, Cheng Chi, Yu Li and Haining Huang
In passive sonars, distance and depth estimation of underwater targets is often limited by the accuracy of time delay estimations. The estimation accuracy of the existing methods of time delay estimation is limited by the uniform discrete grid (signal sa...
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