# Electronics Letters

## Filter Results

Displaying Results 1 - 25 of 36
• ### In brief

Publication Year: 2014, Page(s): 968
| |PDF (214 KB)
• ### Interview

Publication Year: 2014, Page(s): 968
| |PDF (139 KB)

Dr Hirotaka Ono of NTT Photonics Laboratories tells us about the research behind the Letter 'Inter-core crosstalk measurement in multicore fibre amplifier by using multiple intensity tones', page 1009. View full abstract»

• ### Burning point

Publication Year: 2014, Page(s): 969
| |PDF (311 KB)

A team including members from the University of Limerick in Ireland and Italy's Politecnico Milano report a quasi-distributed sensor incorporated in an RFTA device, using an emerging type of FBG; draw-tower gratings (DTGs). View full abstract»

• ### Inside view

Publication Year: 2014, Page(s): 970
| |PDF (389 KB)

The authors discuss brushless DC motors and how widely they're used. The new starting strategy is presented together with the motivation for developing it. View full abstract»

• ### Fractional normalised filtered-error least mean squares algorithm for application in active noise control systems

Publication Year: 2014, Page(s):973 - 975
Cited by:  Papers (5)
| |PDF (347 KB)

A novel fractional normalised filtered-error least mean squares (FN-FeLMS) algorithm is designed for secondary path modelling in active noise control systems. The update is formed as a combination of the conventional LMS and a fractional update derived from the Riemann-Liouville differintegral operator. The algorithm is considered for (machine) noise reduction for a primary path with zero-mean bin... View full abstract»

• ### Low-profile omnidirectional dual-polarised antenna for 2.4 GHz WLAN applications

Publication Year: 2014, Page(s):975 - 976
Cited by:  Papers (2)
| |PDF (527 KB)

A low-profile omnidirectional dual-polarised antenna for 2.4 GHz wireless local area network (WLAN) applications is proposed. The vertically/horizontally dual-polarised radiation patterns are achieved by combining a modified monopole antenna with a printed arc dipole array. The overall volume of the presented antenna is less than 0.63λ0 × 0.63λ0 View full abstract»

• ### Circularly polarised magneto-electric dipole antenna

Publication Year: 2014, Page(s):976 - 978
Cited by:  Papers (1)
| |PDF (437 KB)

A new design of a circularly polarised magneto-electric dipole antenna is presented. The proposed antenna is composed of two magneto-electric dipoles and a feeding network comprising a wideband 90° Schiffman phase shifter. The two magneto-electric dipoles are cross-placed. By using the proper feeding network, two orthogonal linearly polarised modes with a 90° phase difference for cir... View full abstract»

• ### Low RCS microstrip antenna using polarisation-dependent frequency selective surface

Publication Year: 2014, Page(s):978 - 979
Cited by:  Papers (4)
| |PDF (489 KB)

A low radar cross-section (RCS) microstrip antenna is proposed. A polarisation-dependent frequency selective surface (PDFSS) structure is designed and used as the antenna ground. By properly etching the unit cells of the PDFSS with different orientations on the ground of the microstrip antenna, the RCS has been reduced in the angular range of -90 ° ≤ θ ≤ +90�... View full abstract»

• ### Compact bionic handling arm control using neural networks

Publication Year: 2014, Page(s):979 - 981
Cited by:  Papers (2)
| |PDF (518 KB)

The tip position control of a class of continuum manipulators namely the compact bionic handling arm (CBHA) is proposed. The control scheme includes two sub-controllers. The first sub-controller, based on the distal supervised learning scheme, deals with the stationary CBHA's behaviours; whereas the second based on adaptive control handles non-stationary behaviours. The experimental results obtain... View full abstract»

• ### Monitoring of radiofrequency thermal ablation in liver tissue through fibre Bragg grating sensors array

Publication Year: 2014, Page(s):981 - 983
Cited by:  Papers (13)
| |PDF (609 KB)

A fibre Bragg grating (FBG) array-based sensing probe has been installed on a device for radiofrequency thermal ablation (RFTA). The probe is made of five FBGs with 0.5 cm active area and 1 cm spacing, to provide quasi-distributed thermal pattern measurements. Multiple experiments have been conducted on porcine liver, reporting the temperature pattern along the ablation axis. Thermal maps allow an... View full abstract»

• ### Compact on-chip measurement system for testing programmable delay lines

Publication Year: 2014, Page(s):983 - 985
| |PDF (346 KB)

A compact on-chip measurement system is proposed for the testing of multiple programmable delay lines (timing digital-to-analogue converters (DACs)) through a low-speed analogue test bus. The system consists of very small delay-to-current converters local to each timing DAC, multiplexed to a centrally located programmable-gain sense amplifier. Silicon test results demonstrate that the system is ca... View full abstract»

• ### Two-stage optimisation algorithm for adaptive IIR notch filter

Publication Year: 2014, Page(s):985 - 987
| |PDF (244 KB)

The performances of the linear prediction (LP) algorithm and the indirect plain gradient (IPG) algorithm for the adaptive infinite-impulse-response (IIR) notch filter are theoretically studied, and the two phenomena in these two algorithms are revealed. First, the LP algorithm has a faster convergence speed than the IPG algorithm when the initial adjusted value is far away from the optimal solutio... View full abstract»

• ### Mixed polarity reversible Peres gates

Publication Year: 2014, Page(s):987 - 989
Cited by:  Papers (1)
| |PDF (339 KB)

Reversible Peres gates with more than two all over binary-valued control signals are discussed. Methods are disclosed for the low-cost realisation of this kind of Peres gates without requiring ancillary lines. It is shown that Peres gates with n control signals may be obtained with a quantum cost of 2n+1 - n - 2, using Feynman gates and controlled gates realising the &#... View full abstract»

• ### Disturbance observer control method in DGMSCMG

Publication Year: 2014, Page(s):989 - 990
| |PDF (337 KB)

To restrain disturbances produced by parameter variations and external disturbances in the axial magnetic bearing in the application of a double-gimbal control moment gyro (DGMSCMG), a disturbance observer control method is proposed, which integrated the H∞ controller and the disturbance observer. This method considers parameter variations of the magnetic bearing and the e... View full abstract»

• ### Terminal-voltage-based starting strategy for brushless DC motors without position sensors

Publication Year: 2014, Page(s):990 - 992
| |PDF (398 KB)

A new starting strategy is presented for brushless DC motors (BLDCMs) without rotor position sensors. This strategy can accelerate the rotor by regulating commutation frequency to be suitable for the supplied voltage according to the waveform of average terminal voltages. Experimental results demonstrate the effectiveness of the strategy. View full abstract»

• ### Active contours driven by regularised gradient flux flows for image segmentation

Publication Year: 2014, Page(s):992 - 994
Cited by:  Papers (5)
| |PDF (372 KB)

A novel active contour model driven by regularised gradient flux flows is presented for image segmentation, which achieves an accurate result because the zero crossings of the image Laplacian are reached at the object boundary when minimising the gradient flux flows. Furthermore, the Laplacian of the image is regularised with an anisotropic diffusion term, which can not only reduce noise but also ... View full abstract»

• ### Effective early termination algorithm for depth map intra coding in 3D-HEVC

Publication Year: 2014, Page(s):994 - 996
Cited by:  Papers (4)
| |PDF (175 KB)

In the current high-efficiency video coding-based three-dimensional video coding (3D-HEVC) design, new depth intra modes including depth modelling modes and region boundary chain coding are applied for depth map coding. These partition-based intra modes achieve the highest possible coding efficiency, but result in extremely large encoding time which obstructs the 3D-HEVC from practical application... View full abstract»

• ### Edge-based spatial concealment of digital dropout error in degraded archived media

Publication Year: 2014, Page(s):996 - 997
Cited by:  Papers (3)
| |PDF (289 KB)

A spatial concealment technique, based on the concept of the strength of an edge, is proposed for digital dropout' error, evident in old archived media. As long as the presence of pathological motion is observed in video sequences where current state-of-the-art methods fail to reproduce correct information, such spatial restoration offers a much better solution in terms of quality and complexity.... View full abstract»

• ### Object-based attention: saliency detection using contrast via background prototypes

Publication Year: 2014, Page(s):997 - 999
Cited by:  Papers (1)
| |PDF (331 KB)

An object-based attention model to predict visual saliency using contrast against the background prototypes' is presented. The proposed model automatically identifies a series of regions far away from the image centre as background prototypes. The visual saliency is then calculated using the colour contrast against these background prototypes. Promising experimental results demonstrate the effect... View full abstract»

• ### Person re-identification by modelling principal component analysis coefficients of image dissimilarities

Publication Year: 2014, Page(s):1000 - 1001
Cited by:  Papers (1)
| |PDF (180 KB)

Signature-based matching has been the dominant choice for state-of-the-art person re-identification across multiple disjoint cameras. An approach that exploits image dissimilarities is proposed, treating re-identification as a binary classification problem. To achieve the objective, the person re-identification problem is addressed as follows: (i) first, compute the image dissimilarity between a p... View full abstract»

• ### Remarks on the Pocklington and Padr??-S??ez cube root algorithm in Fq

Publication Year: 2014, Page(s):1002 - 1003
| |PDF (93 KB)

A cube root algorithm in Fq proposed by Pocklington and later rediscovered by Padró and Sáez is clarified and generalised. Some errors in the result of Padró and Sáez are corrected and a full generalisation of their result is given. A comparison of the implementation of the proposed algorithm with the two most popular cube root algorithms is also given, n... View full abstract»

• ### Wilkinson power divider design for dual-band applications

Publication Year: 2014, Page(s):1003 - 1005
Cited by:  Papers (2)
| |PDF (370 KB)

A novel dual-band Wilkinson power divider (WPD) is designed for the purpose of operating at two arbitrary frequencies. The theory and design procedure of the novel component are presented in detail. For demonstration, a dual-band WPD with operating frequencies of 1.0 and 2.6 GHz is proposed, fabricated and tested. The good agreement between the measured and simulated results confirmed the design c... View full abstract»

• ### Out-of-phase power divider based on two-layer SIW

Publication Year: 2014, Page(s):1005 - 1007
Cited by:  Papers (1)
| |PDF (383 KB)

A novel out-of-phase power divider based on a two-layer substrate integrated waveguide (SIW) is presented. The input of the proposed power divider in one substrate is coupled to four outputs in another substrate through a slot located in the broad wall of the waveguide. By employing a step SIW in the input structure, the power divider exhibits a wide passband and good output imbalance. The advanta... View full abstract»

• ### Power divider with bandwidth from 14 to 82 GHz in CMOS IC technology

Publication Year: 2014, Page(s):1007 - 1009
| |PDF (365 KB)

An on-chip power divider with an extremely wide bandwidth is presented. The power divider was implemented in a TSMC 180 nm RF CMOS process. Measurements showed an absolute bandwidth of 68 GHz from 14 to 82 GHz with a matching condition of <;-10 dB, which was the fractional bandwidth of 141.7%. A very accurate bandwidth analysis using the theory of three coupled lines is provided. An insertion l... View full abstract»

• ### Inter-core crosstalk measurement in multi-core fibre amplifier using multiple intensity tones

Publication Year: 2014, Page(s):1009 - 1010
| |PDF (215 KB)

An inter-core crosstalk measurement method in a multi-core erbium-doped fibre amplifier that uses a single-wavelength signal with multiple intensity tones is investigated. Its feasibility is confirmed and the output signal power dependence of the crosstalk values for the same signal gains between cores is successfully characterised. View full abstract»

## Aims & Scope

Electronics Letters is internationally renowned for its rapid communication of new developments and emerging topics across the broad and interdisciplinary field of modern electronics and electrical engineering.

Full Aims & Scope

## Meet Our Editors

Editors-in-Chief

Professor Chris Toumazou
Director of the Biomedical Institute
Imperial College, London, UK

Professor Ian White