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Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be merged with antenna arrays at the transmitter and receiver to increase the diversity gain and/or to heighten the system capacity on time-variant and frequency-selective channels, resulting in a Multiple-Input Multiple-Output (MIMO) configuration. The IEEE 802.11n standard based...
In this paper, a frequency domain feature extraction algorithm for palm-print recognition is proposed, which efficiently exploits the local spatial variations in a palm-print image. The entire image is segmented into several narrow-width spatial bands and a palm-print recognition scheme is developed based on extracting dominant spectral features from each of these bands using two-dimensional discrete...
Palmprint identification is a subcategory of biometrics identification, which can be efficiently used to identify the people. Palmprint-based identification is currently a potential alternative to human identification method of a well known fingerprint-based identification. For example, if the hand of the identified person is dirty, the accuracy of fingerprint-based identification is distorted, while...
Current video and image systems are typically of limited use in poor visibility conditions such as in poor illumination, rain, fog, smoke, and haze. These conditions severely limit the range and effectiveness of imaging systems because of the severe reduction in contrast. The contrast of any image is a very important characteristic which decides the quality of image. Our chief goal in this paper is...
Encryption is used to transmit data in open networks with security. Each type of image has its own features, therefore different techniques can be adopted to protect the image from unauthorized access. Most of the available encryption algorithms are mainly used for large devices. There is no such image encryption algorithm with smallest key for smaller devices like cell phone, smart card etc. In this...
This paper proposes a distortionless image data hiding algorithm based on integer wavelet transform that can hide data into the original image .The data can be retrieved and the original image can be recovered without any distortion after the hidden data are extracted. This algorithm hides data into one or more middle bitplane(s) of the integer wavelet transform coefficients in the LH, HL and HH frequency...
In this paper basic power supply architecture for telecom application is briefly explained. The merits and demerits of the architecture are presented. This paper is useful for evaluating issues and challenges in the research area of telecom application. This issue includes not only the improving efficiency, but also increased concern regarding the cost and complexity of power supply systems.
This paper deals with the use of the integrated circuit electromagnetic model (ICEM) to analyze, predict, and optimize auto compatibility and electromagnetic emission at PCB level. ICEM is currently under standardization process (IEC62014-3). The basic ICEM architecture is composed of a power distribution network model and an internal current source modeling digital activity. Such an approach enables...
Tuning of a pH process is a challenging problem due to the strong on-line non-linearity and extreme sensitivity to disturbances of the process. Hence, a nonlinear control strategy based on sliding mode, which is a standard approach to tackle the parametric and modeling uncertainties of a nonlinear system, is chosen for tuning a pH process. Fuzzy Sliding Mode Control (FSMC) as a robust and intelligent...
The aim of this paper is to study the tuning of a PID controller using soft computing techniques. The methodology and efficiency of the proposed method are compared with that of traditional methods. Determination or tuning of the PID parameters continues to be important as these parameters have a great influence on the stability and performance of the control system. The results obtained reflect that...
This paper presents a CPW-fed antenna with a triangle placed on a rectangular patch with two semi circles placed on either sides for WLAN application. This Antenna satisfies the licensed frequency band (5.15 to 5.95 GHz) having return loss lower than -10 dB. The antenna is designed on a substrate with dielectric constant εr=4.4. The size of the antenna is 15.6mm×15.2mm×1mm. The effects of shape, length,...
Data mining or Knowledge discovery is seen as an increasingly important tool by modern business to transform data into an informational advantage. Mining is a process of finding correlations among dozens of fields in large relational databases and extracts useful information that can be used to increase revenue, cuts costs, or both. Classification is a supervised machine learning procedure and an...
Coverage analysis defines the tracing of a program by test cases. It also helps in the testing process by finding the areas of a program not exercised by a set of test cases. Introducing new test cases to increase coverage, and determine the quantitative measure of the code, which is an indirect measure of quality. Coverage analysis provides more benefit when applied to an application that makes a...
This paper presents a modified particle swarm optimization (MPSO) algorithm to design an optimal multi input multi out (MIMO) fuzzy logic controller for a cement mill process. The membership function, rule base and the scaling factor of the multi input multi output FLC is tuned for optimal control performance using MPSO by minimizing the Integral absolute error for minimum and maximum operating setpoints...
The paper presents a neural network based predictive control (NPC) strategy to control nonlinear chemical process or system. Multilayer perceptron neural network (MLP) is chosen to represent a Nonlinear autoregressive with exogenous signal (NARX) model of a nonlinear process. Based on the identified neural model, a generalized predictive control (GPC) algorithm is implemented to control the composition...
At its simplest, volume calculation of MR Image segmented & further soft computed to estimate the affected intensity of Alzheimer's disease is dealt with this paper. It is concerned with Voxel Based Morphometry to render the first part segmentation. The result gives an active region which further needs an estimation to justify the diagnosis. As in this case the image is in form of voxels. When...
This paper develops a ANFIS controller design method for temperature control in plastic extrusion system. The plastic extrusion process control system uses first order transfer function. Plastic extrusion system is generally nonlinear and the temperature of the plastic extrusion system may vary over a wide range subjected to various disturbances. The plastic extrusion system compresses of couple effects,...
This paper describes a novel single bit control system processor with efficient code density in System onChip(SOC) and mixed signal applications. Advanced process technology nowadays enables hundreds of million transistors to be integrated onto a single chip, making system-on-a-chip designs more feasible than ever. Such SOC chips usually consist of various components such as analog-to-digital (ADCs)...
Spectrum sensing is a critical component of the Cognitive Radio that detects the presence of primary user signal in a channel. In this paper energy detection technique based on Neyman-pearson criterion is used to detect the presence of deterministic primary user (PU) signals in the channel. We have considered three different kinds of modulated signal such as BPSK, QPSK , DVB-T (2K mode) under additive...
Abstract-Advancements in VLSI technology has made it possible to have more than eight metal layers connecting millions of closely placed devices in a single IC chip. Different interconnect layers run across the chip and the necessary connections across the layers are made through vias. The impedance discontinuity at the junction of the via and the interconnect line creates signal reflections and contributes...
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