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We investigate ear recognition systems for severe signal degradation of ear images in order to assess the impact on biometric performance of diverse well-established feature extraction algorithms. Various intensities of signal degradation, i.e. out-of-focus blur and thermal noise, are simulated in order to construct realistic acquisition scenarios. Experimental evaluations, which are carried out on...
A potential technology by substrate interposer enables high bandwidth and low power application processing devices of the future, because the demand of smart mobile products are driving for higher logic-to-memory bandwidth (BW) over 30 GB/s with lower power consumption and ultra-capacity of memory. This paper presents a new High Bandwidth Package-on-Package (HB-PoP) structure with substrate interposer...
In this paper, we present a new two stage maximum likelihood based estimator for bearing only target localization. In the proposed method, first a coarse and fast estimation of target location is performed. Then in the second stage, the primary estimated location and its features would be applied to extract the noise variance and restrict the search area. Our proposed method in the second stage is...
One of the problems encountered in wireless sensor networks is the effect of noisy links. So, in this paper we propose a new adaptive estimation algorithm that mitigates the effect of noisy links in diffusion least mean square (DLMS) adaptive networks. Our proposed algorithm is based on combining the cooperative and non-cooperative schemes, but this combination is done in a regular manner. Using this...
Presented paper describes different clutter cancelation techniques used for bistatic radars. It mentions two commonly used optimal methods and introduces two suboptimal methods. The two suboptimal methods were devised for multistatic system working in code multiplex. Methods comparison is performed on the simulations of ground zero-Doppler clutter cancelation.
The use of a light source as a beacon is advantageous for the guidance and control of Unmanned Underwater Vehicles (UUVs). This approach allows a follower UUV to determine its relative pose (position and orientation) using low-cost commercial off the shelf (COTS) hardware (e.g., metal halide light sources). In order to design an effective detector unit for the follower UUV and predict its performance,...
Ear recognition has recently gained much attention, as for surveillance scenarios identification remains feasible, in case the facial characteristic is partly or fully covered. However video footage stemming from surveillance cameras is often of low quality. In this work we investigate the impact of signal degradation, i.e. out-of-focus blur and thermal noise, on the segmentation accuracy of automated...
In analog-digital mixed circuit boards, noises from the digital side to the analog side through G ND power supply layer is one of the problems. As one of the methods to reduce noise, slot type GND power supply layer is used. It is to divide G ND power supply layer with slot. However, this method has problems. One of the problems is impedance mismatch on the signal line between the analog and digital...
In this paper, we propose an indoor visible light positioning system which is based on time difference of arrival (TDOA). Compared to current TDOA which uses square wave for pilot signal, our system uses sinusoidal wave for pilot signal. Our proposed system is simulated in the room measuring 5×5×3m3. In the simulations, we consider the effects shot noise, thermal noise and noise from reflected light...
In this paper, we study the problem of sum-rate maximization for an active channel subject to two constraints, one on the source total transmit power and one on the channel energy (or total power). Here, active channel refers to a parallel channel where not only can the source transmit power over different subchannels can be optimally calculated but also the gains of the subchannels can also be adjusted...
This paper focuses on simulation of noise radiated by Switched Reluctance Motors for automotive powertrains. Since control for maximum efficiency leads to high torque ripple and noise radiation, optimizing the NVH behaviour is essential. The simulation approach, based on electro-magnetic and vibro-acoustic finite element models and applicable to other electric motors, is illustrated with concrete...
In optical systems, the energies are very low if the photo source is divided through polarization beam splitters. Most of the energies are submerged in the noise and the useful signal is even weaker than the noise. Therefore we must detect the weak useful signal from the strong noise in order to better understand the radiant features of weak signals. Nowadays, there are a lot of methods to be used...
It is known that extraction of fetal electrocardiogram (FECG) from maternal skin electrode measurements has vital significance for fetal monitoring. The fetal and maternal signals have their own specific temporal or statistical structures; In view of this fact our paper introduces a new semi-blind method of extracting fetal electrocardiogram as the following: the maternal signal is firstly removed...
3He detector has been widely used for security and neutron scattering. Due to 3He supply crisis, alternative thermal neutron detection technique is studied. For the adequate 10B supply and its large cross-section with thermal neutron, boron coated straw detector (BCSD) is a good choice to replace the 3He tube. To achieve high thermal neutron detection efficiency, a BCSD module usually consists of...
Non-linear morphological edge detectors have been proven to be robust in the presence of noise and able to discriminate between edges and regions corrupted by noise. In this paper a novel non-linear morphological edge detector is presented when implemented as a compact circuit on Quantum Cellular Automata (QCA) in crossbar nanoelectronic architecture. The proposed QCA implementation provides high...
This paper investigates the frequency domain prediction of conducted EMI within power converters supplied by front-end three-phase diode-bridge. Noise source, noise propagation path and noise receiver are identified. Difficulty due to the presence of diode-bridge is analyzed and a method is proposed and verified by measurement to take the variation of propagation path into account while still enable...
SiC technology is attractive for power devices, as it potentially offers many advantages over traditional Si-based devices. However, many issues still need to be properly addressed in order to become a popular and cost-effective alternative to Si devices. One of these issues are high-frequency oscillations that appear during commutation, which limit the switching speed of the device and can produce...
Clipping and filtering can be used to effectively reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals at the cost of introducing distortion. So far, various clipping and filtering techniques have been proposed in the literature, which have different performance in terms of PAPR reduction and signal distortion. However, the minimum signal distortion...
The satellite clock offset is crucial for simulation of Global Navigation Satellite System (GNSS). The accurate and efficient models are required to generate the satellite clock offset in real time. This paper proposed a scheme that generates satellite clock offset with white noise as input. Furthermore, the computation of model parameters is presented with the original satellite clock data. The simulation...
Reliable co-channel bidirectional transmission in wireless networks is moving towards reality by employing the emerging full-duplex (FD) technology. Enhanced by FD-capable nodes, a future wireless network can be made up merely with pairs of bidirectional communicating nodes where each pair occupies a block of orthogonal resource to avoid interference, referred to as pure-FD system. In this paper,...
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