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Device level variability in silicon trapezoidal FDSOI FinFET due to Random Dopant Fluctuation (RDF) is analyzed and a simulation approach for studying the RDF effects in the trapezoidal FDSOI FinFETs using TCAD tools is proposed here. A 22nm gate-length silicon-on-insulator (SOI) FinFET with a body width of 15nm for demonstration is used and this approach utilizes the random nature of the dopant variations...
High Impedance Surface (HIS) resonating at two different frequencies supported by a defected ground structure (DGS) for wideband Radar Cross Section (RCS) reduction is proposed. The perforation in the ground plane contributes to reduction in resonant frequency resulting in the overall size reduction. Comparison of RCS of the structure and Perfect Electric Conductor (PEC) is also presented. The perforation...
Phonetic Engine (PE) is a system that is used to determine the sequence of phones in a spoken utterance. In order to transcribe the speech database, International Phonetic Alphabet (IPA) is used. This work focuses on developing multilingual PE for four Indian languages namely, Bengali, Hindi, Urdu and Telugu. The number of languages can be increased to any number. For developing the PE, read speech...
Modern communication system demands compact devices that operate over a wide range of frequencies. These systems require minimum sized antennas. Two miniaturized spiral configurations (rectangular and circular) that offer wide bandwidth and multiband operation is proposed in this paper. The structures use spiral configuration to achieve size reduction and wideband/ multiband operation. The rectangular...
This paper presents a machine translation system for translating Malayalam text to Indian Sign Language (ISL) using synthetic animation approach. The proposed system makes use of HamNoSys structure as an intermediate representation for signs. The system accepts Malayalam input either as single words or as multiple words and the output is delivered as 3D character animation. This system also provides...
Epilepsy is an infirmity which affects the brain causing repeated seizures. An automatic novel method is used for analyzing the EEG signal and for detecting epileptic seizure activity. The proposed method is tested on a publicly available dataset and it uses two time domain features namely line length and energy. Classification algorithms-1) Quadratic discriminant analysis (QdA), 2) K-Nearest Neighbour...
Automatic summarization of text is on of the area of interest in the field of natural language processing. The proposed method utilizes the sentence extraction in a single document and produces a generic summary for a given Malayalam document (Extractive summarization). Sentences in the document are ranked based on the word score of each word present in it. Top N ranked sentences are extracted and...
Radio over Fiber (RoF) technology allows modulating the radio frequency subcarrier on to an optical carrier for distribution over an optical fiber network. Optical single sideband enables the effective utilization of bandwidth in optical fiber. When optical fiber is used for distribution of radio signals, low attenuation loss, high bandwidth and high capacity signal transmission are made possible...
Necessity of meat quality evaluation has become important in the present scenario. Meat and meat products are potential vehicles of pathogens that cause hazards to human beings. The methods for freshness and quality assessment of meat can be chemical, sensory and spectroscopy and has several advantages and disadvantages. Need for a non-destrctive method has led to colour and computer image analysis,...
Road planning and traffic monitoring is conducted based on survey of traffic volume. In recent years many of researchers have developed vision and audio based techniques for detection and classification of moving vehicles. Audio based technique suffers from low accuracy but has low computational cost. Then there is visual based approach which has significantly higher accuracy but demands high computational...
This paper presents a versatile monitoring system for solar photovoltaic (PV) system under real-time environment. The parameters of solar PV system such as panel voltage, panel current, irradiance level and module temperature are acquired through various compact Data Acquisition (DAQ) modules. These parameters are utilized to plot the dynamic characteristics of the PV module such as I-V and P-V curves,...
The Mobile Ad-hoc Network (MANET) is a volatile network, the nodes are in the movable state. The node can easily enter and exit from the network. The attacker node can easily enter into the network and affect the performance of the network. The malicious nodes are difficult to detect as any node can enter into the network easily. The detection of the malicious node is very important to secure and...
In this paper, gain enhancement of Microstrip Antenna (MSA) using dielectric loading and array of metallic rods is presented. The substrate and dielectric load are made up of silicone rubber which has measured dielectric constant of 5.01 at 1GHz. The designed dielectric loaded antenna with an array of metallic rods shows significant gain improvement of around 6dB, as compared to simple patch antenna...
A low power, 1-V and an area efficient CMOS amperometric potentiostat is designed for gas sensors exploiting the benefits of room temperature ionic liquids. A regulated cascode current mirror is used as current replicating interface, which results in better performance in terms of gain, input/output resistance, bandwidth and linearity. The potentiostat is implemented in 65 nm CMOS standard process,...
In this paper, Islanding and Power Quality(PQ) Issues in Hybrid Distributed Generation(DG) System consists of Photovoltaic(PV) system and Wind Power Plant connected to grid through a Point of Common Coupling(PCC), are detected and classified, using Wavelet Transform (WT) and Artificial Neural Networks (ANN). A new effective approach is proposed using WT indices and loading of DG on detection and classification...
Quality of food and agricultural products is vital for farmers and consumers. Quality based classification of these products is being carried out manually in the industry which is tedious and expensive. Computer Vision systems can be used to automate the classification process. Automation can reduce the production cost and improve the overall quality. A computer vision system captures the image of...
The ability of High-Voltage-DC(HVDC) system to improve the system dynamics and stability by modulation of active power flow through the HVDC terminals is presented. This method is used to damp oscillations in large systems. A two-machine system is used for analysis. For simulation purpose an HVDC transmission system is designed based on Rihand-Dadri 500kV HVDC project, India. Stability analysis is...
This paper proposes a plain-sailing yet powerful method of classification of 3 phase faults in a long transmission line using k-Nearest Neighbor algorithm approach and Boolean Indicators so as to correct the error in the former approach. Discrete Wavelet transform is carried out of the post fault current signal obtained from the model and standard deviations of the approximate coefficients of the...
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