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A voltage mode (VM) biquadratic universal filter using a current controlled differential difference current conveyor transconductance amplifier (CCDDCCTA) is discussed. The proposed filter uses two capacitors and one CCDDCCTA block only. It has following important facets: (i) Low pass (LP), band pass (BP), high pass (HP), notch and all pass (AP) voltage responses using same configuration, (ii) All...
Leakage power consumption is a major contribution of total power dissipation in Deep Sub-Micron (DSM) technology for CMOS circuit design. In this paper we have proposed a Novel circuit technique known as “Sleepy LECTOR” which mitigates various type of leakage current in DSM regime. In proposed technique we insert p-type sleep transistor above pull up network, and n-type sleep transistor below pull...
A Mobile Ad-hoc networks (MANETs) is composed of Mobile Nodes without any fixed infrastructure. Multicast routing in mobile Ad-hoc networks (MANETs) have many defiance due to implicit characteristics of the network such as node mobility, reliability, finite network resources etc. So, in this paper we have introduced a new scheme to improve the performance and efficiency of multicast routing protocols...
The electroencephalogram (EEG) signals represent the electrical activity of the brain. In applications, such as brain–computer interface (BCI), features of the EEG signals are used to control the devices. However, while recording, EEG signals often contaminated by electrooculogram (EOG) artifacts; such artifacts degrade the performance of the BCI. In this paper, we proposed a new technique using singular...
In this study, we propose a novel physical layer architecture which is a hybrid of IEEE 802.15.4 and IEEE 802.11b for providing ubiquitous connectivity in IoT remote sensing platforms. The proposed architecture multiplexes the commonly available functional units of IEEE 802.15.4 and IEEE 802.11b, thereby achieving significant area and power savings. In order to achieve this, we modified the existing...
This paper presents a 6-bit digital phase shifter designed at Ku-band for electronic beam steering of satellite based phased array antenna systems. The phase shifter is implemented using space qualified 0.25-μm pHEMT GaAs MMIC process. Each individual bit of the phase shifter is designed using optimum topology to achieve minimal insertion loss, accurate phase shifting and low amplitude variations...
This paper proposes a novel and more accurate iris segmentation framework to automatically segment iris region from the face images acquired with relaxed imaging under visible or near-infrared illumination, which provides strong feasibility for applications in surveillance, forensics and the search for missing children, etc. The proposed framework is built on a novel total-variation based formulation...
A current mode universal filter using current controlled differential difference current conveyor transconductance amplifier (CCDDCCTA) is discussed. The filter provides important and desirable features : (i) Uses only one CCDDCCTA and two capacitors, (ii) One can get low pass (LP), band pass (BP), high pass (HP), notch (NF) and all pass (AP) current responses using the same configuration without...
Image denoising is a well documented part of Image processing. It has always posed a problem for researchers and there is no dearth of solutions extended. Obtaining a denoised and perfectly similar image after application of processes represents a mirage that has been chased a lot. In this paper, we attempt to combine the effects of block least mean square algorithm (BLMS) to maximizes the Peak Signal...
The electroencephalogram (EEG) signals often contaminated by muscle or electromyogram (EMG) artifacts. The presence of these artifacts obscure the desired information in the EEG signal. In this paper, we proposed an efficient subspace based technique named singular spectrum analysis (SSA), to remove the EMG artifacts from the single channel EEG signals. For this we proposed a new grouping technique...
Leakage currents are one of the major design concerns in Deep sub-micron (DSM) technology due to rapid integration of semiconductor industries by reducing the transistor size. Many parameter has been reduces with technology scaling such as Threshold voltage, oxide thickness, channel length and supply voltage (Vdd) has been reduced to keep power consumption under control. As a consequence, the transistor...
The MRI imaging is an efficient tool for disease diagnosis, and the features of the taken image has much importance. The reconstruction of such images needs much attention. The main limitation of MRI imaging is its long scan time. The time taken for acquisition can be reduced by non Cartesian acquisition. Spiral MRI is a non Cartesian MRI imaging and is less affected by motion and flow artifacts....
Number Plate Recognition technique is widely used in identifying vehicle identity across the world where a standard plate size and font are maintained which makes recognition easy. For implementing number plate recognition specifically in India a lot number of issue comes up like hundreds of different forms of fonts being used, size of plate not maintained, five different color number plate, double...
Hybrid electric vehicles are widely seen as potential solutions to the problems of exhaust emissions, fuel consumption and technical challenges to increase vehicle functionality. The present paper focuses on the design, development and performance evaluation of a parallel hybrid electric vehicle based on the concept of a new parallel hybrid transmission. A light pickup diesel vehicle is selected as...
A low loss wideband (1–7GHz) SPDT switch using 0.13µm GaAs/InAlAs MHEMT MMIC process is designed, fabricated and tested both on-wafer and in test fixture. The measured results are in close agreement with specifications and simulations, which exhibit insertion loss of 1.05 ±0.05dB, with isolation of 28dB, minimum. All three ports of this SPDT switch are well matched having return loss of more than...
Dynamic domino logic circuits are used for high system performance. The dynamic circuits offer superior speed and power dissipation over static CMOS circuits. But these circuits suffer from limitations such as charge leakage, noise and charge sharing. This article provides analysis of the different keeper topologies on pseudo domino logic circuits with reference to power dissipation. The circuit simulations...
This work demonstrates that with the incorporation of gate stack (GS) on GEWE-SiNW MOSFET, the analog and linearity performance of the device enhances in terms of transconductance, output conductance and device efficiency. The important Linearity figure of merits (FOMs) such as second order voltage intercept point (VIP2), third order voltage intercept point (VIP3), third order input intercept point...
The aim of this paper is to identify Craters on Lunar surface on spectral basis by using Hyperspectral data since each landform of Moon have different spectral signature. Although Hyperspectral images contain a wealth of information due to its fine spectral resolution, the information is often redundant. It is therefore expedient to reduce the dimensionality of the data without losing significant...
Offshore wind farms are becoming an attractive solution for wind power in many developed countries. The voltage source converter (VSC) based multi-terminal high voltage direct current (MTDC) transmission system is an attractive technical option to integrate these offshore wind farms with the onshore grid due to its unique performance characteristics and reduced power loss via extruded DC cables. In...
The micro strip U-shape slotted patch antennas have been drawing attention in various wireless interoperability microwave access (WiMAX) applications since last two decade. The U-shape slotted micro strip antennas have grown as a dominant part of research with their vital roles in mobiles and satellite communication. In this paper design of U shape slotted micro strip antenna is proposed which work...
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