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  Subjects -> ELECTRONICS (Total: 187 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
Acta Electronica Malaysia     Open Access  
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 7)
Advances in Electronics     Open Access   (Followers: 90)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Power Electronics     Open Access   (Followers: 38)
Advancing Microelectronics     Hybrid Journal  
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 337)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 26)
Annals of Telecommunications     Hybrid Journal   (Followers: 9)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 9)
Archives of Electrical Engineering     Open Access   (Followers: 14)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 8)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 30)
Bioelectronics in Medicine     Hybrid Journal  
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 20)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 6)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 13)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 1)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 47)
China Communications     Full-text available via subscription   (Followers: 9)
Chinese Journal of Electronics     Hybrid Journal  
Circuits and Systems     Open Access   (Followers: 15)
Consumer Electronics Times     Open Access   (Followers: 5)
Control Systems     Hybrid Journal   (Followers: 295)
ECTI Transactions on Computer and Information Technology (ECTI-CIT)     Open Access  
ECTI Transactions on Electrical Engineering, Electronics, and Communications     Open Access  
Edu Elektrika Journal     Open Access   (Followers: 1)
Electrica     Open Access  
Electronic Design     Partially Free   (Followers: 117)
Electronic Markets     Hybrid Journal   (Followers: 7)
Electronic Materials Letters     Hybrid Journal   (Followers: 4)
Electronics     Open Access   (Followers: 97)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Electronics For You     Partially Free   (Followers: 100)
Electronics Letters     Hybrid Journal   (Followers: 26)
Elkha : Jurnal Teknik Elektro     Open Access  
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 55)
Energy Harvesting and Systems     Hybrid Journal   (Followers: 4)
Energy Storage Materials     Full-text available via subscription   (Followers: 3)
EPJ Quantum Technology     Open Access   (Followers: 1)
EURASIP Journal on Embedded Systems     Open Access   (Followers: 11)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and Trends® in Signal Processing     Full-text available via subscription   (Followers: 10)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 207)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 4)
IACR Transactions on Symmetric Cryptology     Open Access  
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 99)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 80)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 49)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 9)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal   (Followers: 1)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 72)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 71)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 58)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 26)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 42)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 19)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 26)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 78)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 12)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 12)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 5)
IET Cyber-Physical Systems : Theory & Applications     Open Access   (Followers: 1)
IET Energy Systems Integration     Open Access  
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 35)
IET Nanodielectrics     Open Access  
IET Power Electronics     Hybrid Journal   (Followers: 55)
IET Smart Grid     Open Access  
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 18)
IETE Journal of Education     Open Access   (Followers: 4)
IETE Journal of Research     Open Access   (Followers: 11)
IETE Technical Review     Open Access   (Followers: 13)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 70)
Industrial Technology Research Journal Phranakhon Rajabhat University     Open Access  
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 35)
Informatik-Spektrum     Hybrid Journal   (Followers: 2)
Instabilities in Silicon Devices     Full-text available via subscription   (Followers: 1)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 13)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 18)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 11)
International Journal of Antennas and Propagation     Open Access   (Followers: 11)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 4)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 6)
International Journal of Control     Hybrid Journal   (Followers: 11)
International Journal of Electronics     Hybrid Journal   (Followers: 7)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 13)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 3)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Hybrid Intelligence     Hybrid Journal  
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 16)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 10)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 4)
International Journal of Power Electronics     Hybrid Journal   (Followers: 25)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 4)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 10)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 4)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 6)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
JAREE (Journal on Advanced Research in Electrical Engineering)     Open Access  
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 3)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 11)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 4)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription   (Followers: 1)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 32)
Journal of Electrical Bioimpedance     Open Access  
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electrical, Electronics and Informatics     Open Access  
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 8)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 9)
Journal of Electronic Design Technology     Full-text available via subscription   (Followers: 6)
Journal of Electronics (China)     Hybrid Journal   (Followers: 5)
Journal of Energy Storage     Full-text available via subscription   (Followers: 4)
Journal of Engineered Fibers and Fabrics     Open Access   (Followers: 2)
Journal of Field Robotics     Hybrid Journal   (Followers: 3)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 175)
Journal of Information and Telecommunication     Open Access   (Followers: 1)
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 3)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 10)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 10)
Journal of Microelectronics and Electronic Packaging     Hybrid Journal  
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 3)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 11)
Journal of Nuclear Cardiology     Hybrid Journal  
Journal of Optoelectronics Engineering     Open Access   (Followers: 4)
Journal of Physics B: Atomic, Molecular and Optical Physics     Hybrid Journal   (Followers: 29)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 11)
Journal of Semiconductors     Full-text available via subscription   (Followers: 5)
Journal of Sensors     Open Access   (Followers: 26)
Journal of Signal and Information Processing     Open Access   (Followers: 9)
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer     Open Access  
Jurnal Rekayasa Elektrika     Open Access  
Jurnal Teknik Elektro     Open Access  
Jurnal Teknologi Elektro     Open Access  
Kinetik : Game Technology, Information System, Computer Network, Computing, Electronics, and Control     Open Access  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Magnetics Letters, IEEE     Hybrid Journal   (Followers: 7)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microelectronics and Solid State Electronics     Open Access   (Followers: 27)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 41)
Nanotechnology, Science and Applications     Open Access   (Followers: 6)
Nature Electronics     Hybrid Journal   (Followers: 1)
Networks: an International Journal     Hybrid Journal   (Followers: 5)
Open Electrical & Electronic Engineering Journal     Open Access  
Open Journal of Antennas and Propagation     Open Access   (Followers: 9)
Optical Communications and Networking, IEEE/OSA Journal of     Full-text available via subscription   (Followers: 15)
Paladyn. Journal of Behavioral Robotics     Open Access   (Followers: 1)
Power Electronics and Drives     Open Access   (Followers: 2)
Problemy Peredachi Informatsii     Full-text available via subscription  
Progress in Quantum Electronics     Full-text available via subscription   (Followers: 7)
Pulse     Full-text available via subscription   (Followers: 5)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 3)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 9)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 5)
Revue Méditerranéenne des Télécommunications     Open Access  
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 56)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Services Computing, IEEE Transactions on     Hybrid Journal   (Followers: 4)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 78)
Solid State Electronics Letters     Open Access  
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 13)
Solid-State Electronics     Hybrid Journal   (Followers: 9)
Superconductor Science and Technology     Hybrid Journal   (Followers: 3)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     Open Access  
TELE     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 9)
Transactions on Electrical and Electronic Materials     Hybrid Journal  
Universal Journal of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Ural Radio Engineering Journal     Open Access  
Visión Electrónica : algo más que un estado sólido     Open Access   (Followers: 1)
Wireless and Mobile Technologies     Open Access   (Followers: 6)
Wireless Power Transfer     Full-text available via subscription   (Followers: 4)
Women in Engineering Magazine, IEEE     Full-text available via subscription   (Followers: 11)
Електротехніка і Електромеханіка     Open Access  

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Similar Journals
Journal Cover
Electronics Letters
Journal Prestige (SJR): 0.407
Citation Impact (citeScore): 2
Number of Followers: 26  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0013-5194 - ISSN (Online) 1350-911X
Published by IET Homepage  [44 journals]
  • GenSyth: a new way to understand deep learning
    • Authors: Alexander Wong;Mohammad Javad Shafiee;Brendan Chwyl;Francis Li;
      Pages: 970 - 971
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • in brief
    • Pages: 972 - 972
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • interview
    • Pages: 972 - 972
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • optical self-injection
    • Pages: 973 - 973
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Right on
    • Pages: 974 - 974
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Approach for miniaturisation of planar antenna based on CRLH structure
    • Authors: A.A.R. Saad;
      Pages: 977 - 978
      Abstract: The need to miniaturise antenna size comes from that most mobile platforms having limited space for all the antennas required in the constantly growing wireless systems. Metamaterial-based transmission line, commonly referred to, composite right/left-handed (CRLH) transmission line has a unique feature of supporting an infinite-wavelength wave at a finite and non-zero frequency. As a result, zero- and negative-order resonance can be achieved. This Letter investigates the application of this concept for miniaturisation of planar antenna based on CRLH structure implemented with the microstrip line technology by using zero and high negative value of the phase constant (β). The concept is realised by applying microstrip-bends approach in the design of the CRLH unit cell in which high reactance can be provided by the constitutive parameters of the unit cell. Analytical results have validated the design concept and the modified CRLH unit cell based microstrip-fed monopole antenna, showing a high level of miniaturisation up to 85% from the conventional half-wavelength antenna. These results were obtained by CST Microwave Studio and verified by experimental data.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Control of near electric field by topology optimised sub-wavelength 3D
           loop antenna
    • Authors: A. Mohtadi Jafari;A. Abdolali;
      Pages: 979 - 980
      Abstract: In this Letter, a new method is proposed for the synthesis of the near electric field. This method is based on three-dimensional (3D) small loop antennas with an engineered shape. An arbitrary shape is used as a new degree of freedom. Also, concerns over the implementation of complex shapes are vanished by 3D printing technology. With the help of an array of 3D small loop antennas, complex distribution of electric fields can be realised. To illustrate the functionality of the proposed method, an array of four elements, all of which is connected to a source, is designed to synthesise the desired electric field distribution. The results of design and experimental measurement showed high accuracy and capacity of this method in controlling the electric field.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Linear high-gain bidirectional slot array fabricated by narrow bent
           metallic line
    • Authors: Yuefeng Hou;Zhijun Zhang;
      Pages: 981 - 982
      Abstract: A linear high-gain slot array with bidirectional broadside radiation is proposed. By utilising a novel slot-energising approach, the slot array obtains a simple and compact geometry, which could be fabricated by a narrow bent metallic line. The slot array achieves an approximately constant magnitude distribution on a long radiating aperture by adopting proper slot elements arrangement and optimising the dimensions. Thus, compared to the existing bidirectional slot arrays in the open literature, the proposed slot array generates a higher gain and moderate gain-to-length ratio. To confirm the build strategy, a prototype with the length of 6.3 wavelength at the centre frequency of 2.4 GHz is constructed, fabricated, and tested, which realises a high gain of 14.0 dBi. With the merits of small size, high gain, low cost, and high-power capacity, the proposed slot array is an attractive substitute for various long-distance communication systems.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • 8.4-to-16-bit resolution, 1-to-16 kHz bandwidth ADC with programmable-gain
           functionality for multi-sensor applications
    • Authors: C. Rhee;S. Kim;
      Pages: 982 - 984
      Abstract: A resolution-reconfigurable, bandwidth-scalable analogue-to-digital converter (ADC) with programmable-gain (PG) functionality for a multi-sensor system, which encompasses various signals such as bio-signals and battery-level, is presented. In PG and low-power mode, a PG first-order noise-shaping (NS) successive-approximation register (SAR) ADC achieves 8.4-to-10.2-bit operating up to 16 kHz while providing a gain of 1/2/4. The PG NS SAR ADC can be reconfigured as an adder and a quantiser in a delta-sigma (ΔΣ) modulator enhancing the order of the modulator for high-resolution. The third-order ΔΣ modulator achieves 16.1 bits in a bandwidth of 1 kHz. The work is implemented in a 0.18 μm CMOS process with a 1.8 V power supply.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Dither-based background calibration of capacitor mismatch and gain error
           in pipelined noise shaping successive approximation register ADCs
    • Authors: Peng Wang;Jie Sun;Jianhui Wu;
      Pages: 984 - 986
      Abstract: A dither-based background calibration with data-weighted averaging logic to correct capacitor mismatch and inter-stage gain error in pipelined noise shaping successive approximation register ADCs is proposed. By injecting the dither signal in the background, the inter-stage gain is obtained. Besides, the data-weighted averaging logic is adopted to dissipate harmonics caused by the mismatch of capacitors. Owing to the effective combination of the two methods, there is no need to detect the conditions of injecting the dither signal. As a result, the calibration requires simple logic and adds little analogue overhead.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • GenSynth: a generative synthesis approach to learning generative machines
           for generate efficient neural networks
    • Authors: Alexander Wong;Mohammad Javad Shafiee;Brendan Chwyl;Francis Li;
      Pages: 986 - 989
      Abstract: The tremendous potential exhibited by deep learning is often offset by architectural and computational complexity, making widespread deployment a challenge for edge scenarios such as mobile and other consumer devices. To tackle this challenge, we explore the following idea: Can we learn generative machines to automatically generate deep neural networks with efficient network architectures' In this study, we introduce the idea of generative synthesis, which is premised on the intricate interplay between a generator-inquisitor pair that work in tandem to garner insights and learn to generate highly efficient deep neural networks that best satisfies operational requirements. Experimental results for image classification, semantic segmentation, and object detection tasks illustrate the efficacy of generative synthesis (GenSynth) in producing generators that automatically generate highly efficient deep neural networks (which we nickname FermiNets with higher model efficiency and lower computational costs (reaching $gt 10times $>10× more efficient and fewer multiply-accumulate operations than several tested state-of-the-art networks), as well as higher energy efficiency (reaching $gt 4times $>4× improvements in image inferences per joule consumed on a Nvidia Tegra X2 mobile processor). As such, GenSynth can be a powerful, generalised approach for accelerating and improving the building of deep neural networks for on-device edge scena-ios.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Multiple flow-based knowledge transfer via adversarial networks
    • Authors: D. Yeo;J.-H. Bae;
      Pages: 989 - 992
      Abstract: The authors propose a new knowledge transfer method coupled with a generative adversarial network (GAN) when multiple-flow-based knowledge is considered in a teacher–student framework using a residual network (ResNet). In this method, several independent discriminators adapting multilayer-perceptron-based structures were designed for flow-based knowledge transfer. The proposed GAN-based optimisation alternatively updates the multiple discriminators and a student ResNet such that the flow-based features of the student ResNet are generated as closely as possible to the real features of a teacher ResNet. The experiments demonstrate that the student ResNet trained using the proposed method more accurately captures the distribution of the flow-based teacher knowledge than the $l^2$l2-distance-based training method. In addition, the proposed method provided better classification accuracy than the existing GAN-based knowledge transfer method.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Robust alternating optimisation for extrinsic calibration of RGB-D cameras
    • Authors: J.W. Jang;Y.C. Kwon;W. Hwang;O. Choi;
      Pages: 992 - 994
      Abstract: RGB-depth (RGB-D) cameras are widely used for 3D reconstruction or human–computer interaction. To simultaneously acquire colour and depth images of an object in widely separated viewpoints, multiple RGB-D cameras are required. To fuse the colour and depth information of individual RGB-D cameras in the reference frame, the RGB-D cameras need to be fully calibrated. Among many steps of extrinsic calibration between different RGB-D cameras, bundle adjustment has been either slow or error-prone in the presence of false correspondences across the views. This Letter presents an accurate and efficient bundle adjustment method based on alternating optimisation of a robust cost function. Through experiments, the authors show that the proposed method can dramatically reduce computation time while preserving state-of-the-art accuracy.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Automatic classification of linear modulations using multiple receivers in
           the presence of symbol timing uncertainty
    • Authors: E. Efendi;B. Dulek;
      Pages: 994 - 996
      Abstract: Modulation classification of signals collected from multiple receivers over additive white Gaussian noise channels is considered. It is assumed that the channel between the transmitter and each receiver is subject to unknown flat block fading and symbol timing uncertainty. Following the hybrid likelihood framework, the likelihood function of the waveforms observed at the receivers is marginalised over the distribution of the transmitted symbol sequence. Then, the parameter estimates obtained by the particle swarm optimisation technique are substituted into the average likelihood expression in order to compute the test statistic for each assumed modulation scheme. A classification decision is declared in favour of the modulation scheme with the highest overall likelihood score. Numerical examples are provided to evaluate the performance of the proposed classifier as a function of the average received signal-to-noise ratio for different number of receivers and varying quality of the initial parameter estimates.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Packing additional bits into LDPC coded data
    • Authors: Suihua Cai;Shancheng Zhao;Xiao Ma;
      Pages: 997 - 998
      Abstract: In this Letter, the authors proposed a novel scheme, with neither extra transmission energy nor extra bandwidth, to transmit additional bits along with low-density parity-check (LDPC) coded payload data. At the transmitter, additional bits are first transformed into a random-like sequence, which is then superimposed onto the LDPC coded data, resulting in the transmitted sequence. At the receiver, a statistical learning-based algorithm is employed to detect the additional bits. Then the interference of the additional bits is removed and the payload data is recovered by the conventional LDPC decoder. Simulation results show that, for a (3,6)-regular LDPC code of length 8064, ten additional bits can be transmitted reliably with negligible effect on the reliability of the payload data.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Flexible capacitive pressure sensors fabricated by 3D printed mould
    • Authors: Xuke Yu;Yifeng Li;Huiyang Yu;
      Pages: 999 - 1000
      Abstract: In this Letter, flexible capacitive pressure sensors are developed. Compared to the current mainstream design, the structure is easier to get a large deformation in the dielectric layer and its deformation is more controllable. Since the structure is symmetrical, it deforms uniformly and its Poisson's ratio is near zero when pressure is applied. Besides that, by moderating the structure dimension, sensors with different sensitivity and detection pressure range can be achieved. The fabrication process of these flexible sensors is mainly based on the 3D printing technology, with which the moulds of the sensor are made. The mixture of polydimethylsiloxane and hardening solution is dripped into the printed mould to form the dielectric layer. When it is completely solidified, the dielectric layer is demoulded from the mould. Four moulds with different inner sizes are printed and then four sensors are fabricated and tested. The measurement results show that the capacitance of the sensors increases when the applied pressure increases. The sensor with thinner supporting structure in the dielectric layer has higher sensitivity. The sensor with a thicker supporting structure in the dielectric layer has a larger pressure detection range. All the sensors have low hysteresis error and excellent repeatable performance.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • High common-mode suppression balanced bandpass filter using isosceles
           right-angled triangular resonator
    • Authors: Qiao Zhang;Chang Chen;Weidong Chen;
      Pages: 1000 - 1002
      Abstract: A balanced bandpass filter with high common-mode (CM) suppression using isosceles right-angled triangular (RAT) resonator is proposed in this Letter. The two high order orthogonal modes (TM210Z and TM200Z) are generated in the two overlapped isosceles RAT resonators under differential-mode (DM) and CM excitation, respectively. In this structure, TM210Z mode will be transmitted and TM200Z mode will be blocked. Furthermore, four via-holes are introduced to disturb TM210Z mode while TM200Z mode is unaffected, in order to shift the DM passband to the position of CM suppression. The designed balanced bandpass filter operating at 6.12 GHz with 3 dB fractional bandwidth of 5% is fabricated and measured. The measured and simulated results match very well with each other validating the feasibility of the proposed design concept.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Compact ultra-wideband bandstop filter using capacitive loads
    • Authors: Baoguang Liu;Yun-Peng Lyu;Lei Zhu;Chonghu Cheng;
      Pages: 1002 - 1004
      Abstract: A compact UWB band-stop filter (BSF) using capacitive loads is proposed. In contrast to its traditional counterparts, this proposed BSF only consists of two capacitors and a short-ended coupled line (C-section). By introducing capacitors inside the C-section and between two ports, respectively, cross-coupling and source/load coupling are introduced to create up to four transmission zeros. Meanwhile, shunt capacitive effect of loaded capacitors can further reduce the length of C-section. After working principle and design method of this proposed BSF are well-illustrated, a prototype with 20 dB fractional bandwidth of 110% at 4.24 GHz is finally designed and fabricated. It occupies only 0.45λg × 0.061λg, where λg is the guided wavelength at the centre frequency.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Hot pixel classification of single-photon avalanche diode detector arrays
           using a log-normal statistical distribution
    • Authors: P.W.R. Connolly;X. Ren;R.K. Henderson;G.S. Buller;
      Pages: 1004 - 1006
      Abstract: CMOS single-photon avalanche diode (SPAD) detector arrays are commonly used in low-light imaging applications, and are known to suffer from certain defects which cause ‘hot pixels’. These are detectors which exhibit a significantly larger than average dark count rate, adding noise to the data. Typically, data from these detectors are removed by post-processing or the detectors can, in some cases, be switched off prior to measurement. Users must define and identify these hot pixels, however there exists no consistent methodology of doing so. The authors present a self-consistent method of defining a hot pixel by fitting a log-normal distribution to a histogrammed dark-count map of the array. The approach has proven a robust method of classifying hot pixels in a number of different detector arrays, providing a threshold based on statistical analysis rather than human intuition. This definition provides a reliable and standardised figure of merit, facilitating a more accurate comparison between different single-photon detector arrays.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Quantum dash frequency comb laser stabilisation by optical self-injection
           provided by an all-fibre based delay-controlled passive external cavity
    • Authors: C. Weber;B. Batagelj;P. Fiala;D. Auth;U. Dragonja;Q. Gaimard;A. Ramdane;S. Breuer;
      Pages: 1006 - 1009
      Abstract: The intermode beat frequency stability of a 1 mm long quantum dash self mode-locked semiconductor laser emitting optical frequency combs centred at 1535 nm is improved by single-cavity optical self-injection. A novel all-fibre based cavity employing a piezo-stretchable fibre spool provides both macroscopic optical path cavity length of 76 m and microscopic fine-delay fibre length control. The maximum achieved intermode beat frequency tuning is 2 MHz. The intermode beat frequency line width indicating the optical frequency comb stability is improved from 67 kHz to below 900 Hz constituting an improvement by a factor of 74. An independent free-space stabilisation experiment and stochastic time-domain modelling confirm the demonstrated intermode beat frequency tuning range.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Improved modulation method with reduced switching frequency for OW-PMSM
           system with common DC bus
    • Authors: Heng Nian;Chenhui Ruan;Wei Hu;Dan Sun;
      Pages: 1009 - 1012
      Abstract: To reduce the switching frequency of open-winding permanent magnet synchronous motor (OW-PMSM) system with a common DC bus, this Letter proposes a novel modulation method. In this method, the independent modulation is implemented in each phase to generate the reference voltages in the abc reference frame, where only one bridge arm has switching actions. Compared with the existing modulation methods for OW-PMSM system, the total switching actions within one PWM period can be remarkably reduced to 6 with the control target of the zero-sequence current suppression achieved, and the modulation range can be kept unchanged. The experimental results validate the availability of the proposed modulation method for OW-PMSM system.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Dynamic scale quantum-inspired optimisation algorithm under harmonic
           oscillator potential well
    • Authors: Lei Mu;
      Pages: 1012 - 1015
      Abstract: A quantum-inspired optimisation algorithm with dynamic scale sampling is proposed for converging to the ground state efficiently to obtain the optimal solution. The proposed algorithm maintains diversity to discourage premature convergence through the niching method. Dynamic adjustment of sampling resolution is utilised to find a balance between exploration and exploitation. Energy level transition inside each niche and niches energy balance among niches improve the searching efficiency by guidance energy information of energy equilibrium point. The experimental results on benchmark function sets with compared algorithms show that the proposed scheme is dominant in accuracy and stability.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Closed-form expression for coverage and average rate of 2D and 3D cellular
    • Authors: Hui Zhang;Luan Li;Dan Keun Sung;
      Pages: 1015 - 1017
      Abstract: This Letter proposes a novel tractable solution for the average rate in cellular networks. Specifically, the authors derive a closed-form solution based on bipolar point processes to simplify the computational complexity, which may be conveniently applied to the analysis of actual base station (BS) deployment. Proved by simulation, the results of closed-form solution are consistent with the numerical results. Furthermore, they analyse the BS activation effect under noisy Rayleigh fading channel conditions in 2D and 3D cases, respectively. Simulation shows that turning off the inactive BS can be used as an effective interference mitigation solution, and the interference of the system is mainly limited by the density of active users.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
  • Analysis of residual CFO impact on downlink massive MISO systems
    • Authors: T.-H. Nguyen;M. Van Eeckhaute;J.-F. Determe;J. Louveaux;P. De Doncker;F. Horlin;
      Pages: 1017 - 1019
      Abstract: Massive antenna technologies provide a good power focusing gain for emerging communication systems. They can easily be integrated into an orthogonal frequency-division multiplexing (OFDM) system. However, OFDM is known to be prone to carrier frequency offset (CFO) due to the loss of the orthogonality among OFDM subcarriers. In this Letter, the authors investigate the impact of residual CFO (RCFO) on the downlink performance of massive multiple-input single-output (MISO) OFDM systems using matched-filter (MF) and maximum-ratio-transmission (MRT) precoders. Particularly, the exact mean-square-error (MSE) expressions of the equalised received signal of both MF and MRT systems are derived. Numerical simulations with Rayleigh fading channels are carried out to validate the analysis. The results show that the RCFO causes a MSE plateau compared to the ideal case of no CFO.
      PubDate: 9 5 2019
      Issue No: Vol. 55, No. 18 (2019)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
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