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Tilting of broadside radiation pattern of microstrip antenna array is obtained by loading SRR on the ground plane between antenna elements. Progressive Phase Shift method is used here. The phase delay generated by single SRR is around 500 when compared to a reference transmission line. The beam scanning is found to be 280 with central frequency of 10 GHz and gain of 11.18 dB.
Presented work proposes a novel stator turn-to-turn fault detection method for inverter-fed three-phase induction motor drive. This approach chooses the precise wavelet for Motor Current Signature Analysis (MCSA). The motor phase currents are continuously monitored and discrete wavelet analysis is performed to obtain the approximate and detailed coefficients at different levels. The wavelet functions...
A planar antenna integrated with bandpass filter (BPF) which operates over the ultra-wideband (UWB) frequency of 3.1 to 10.6 GHz is proposed in this research for wireless communication applications. The antenna is designed with slotted circular patch to cover the desired band and a filter is designed using distributed components to ease the integration and compactness utilizing a shunt stub resonator...
In electronic control of internal combustion engine several sensors are used in the intake and exhaust path to acquire information about pressure, temperature, air mass flow, actuator position etc., for executing optimum control of the desired engine operation. The pressure signals sensed by these sensors are found to have pulsations due to construction and operation of the engine induced during intake...
Image restoration is the process of recovering clear version of an image from its degraded form. A novel algorithm is proposed here which uses constrained least squares filter for deconvolution followed by denoising using wave atom transform where cycle spinning technique is implemented to enhance the denoising capability of wave atoms. The advantage of this method is that it does not require a priori...
The number of deaths due to the motor vehicle accidents has increased drastically during the last few years. It is estimated that nearly 40–50 % of the accidents are due to the distractions of the driver. One of the methods to assess driver distraction is using head pose estimation. The unavailability of a standard driving database hampers the study and testing of driver distraction algorithms. In...
In this paper, we are proposing Bag of Feature (BoF) approach for vehicle classification using Speeded Up Robust Features (SURF). First, monocular video taken using a stationary camera is given as the input to Gaussian Mixture Model (GMM) based foreground detector. Then a grid is used to measure the number of foreground pixels. If the pixels inside the grid is greater than a pre-assigned threshold,...
As a solution to the emerging energy crisis and the environmental problems, renewable energy has to be utilised to the most. This paper deals with a residential building which is fully powered by renewable energy sources such as hydrogen fuel cell, IC engine and solar PV. Since the utility has no role in this scenario, the management of the system has to be done precisely, otherwise, it may lead to...
In today's world that witnesses an ever-changing scenario in the technical fields, the concept of an “examination” too has changed. From the traditional methods of pen-and-paper and Optical Mark Recognition (OMR), it has evolved into ‘Online Examinations’, which are a lot more flexible, time-saving as well as require much fewer resources. However, they have certain drawbacks too. While the uncertainties...
Device-to-device (D2D) will be the future of wireless technology with low power, high data rate and low latency for information exchange between wireless devices. However it may not be always feasible because of mobility and influence of surroundings on the devices. This paper presents an approach to model and investigate D2D network at two millimeter wave (mmW) frequencies of 28 and 60 GHz, by calculating...
Nanogrids are part of a microgrid which is powering a single house. Low voltage DC distribution within house structures is called a DC nanogrid. DC electronic loads like BLDC fans, Laptop, LED Lights, battery management system and renewable sources can be connected to the nanogrid. DC nanogrid is a low power dc distribution system suitable for residential applications. The objective of the work is...
With increased cloud adoption globally, the cloud service providers are setting up their data centers in various geographical location to cater the needs of diverse range of users across the globe. The cost of managing data center includes not only hardware, software costs but also the electricity costs prevailing at that location. The cost of electricity varies from location to location and it is...
This paper presents a method to obtain low input current distortion at higher voltage loop bandwidth. A simple RC low pass filter is used in high bandwidth voltage loop to attenuate dominant second order ripples from the control voltage to obtain low input current distortion. This method reduces the complexity in hardware involved in filter implementation. The proposed work keeps the harmonic distortion...
Finding shortest distances and paths have always been a crucial area of study. In this article, we have proposed a linear time pre-processing method for optimization of shortest path and distance algorithms, for an undirected weighted graph with non-negative edges. In this approach, certain parts of a graph are grouped together as subgraphs termed as optimized deterministic routing areas (ODRAs)....
Average absolute frequency deviation value (AFDVavg) based active islanding detection technique is recently introduced for islanding detection of active distribution system with a single active DG. This paper implements, evaluates and analyze the performance of AFDVavg technique for active distribution system with parallel inverter. The main focus is on islanding detection of an ADN with parallel...
With the increasing wind power penetration in the emerging power system, a precise wind power forecasting method is necessary to help the power system operators, to include wind generation into economic scheduling, unit commitment, power markets, and reserve allocation problems. The main objective of this paper is about the prediction of wind velocity. The uncertainties in wind velocity forecast are...
This paper presents a novel feature extraction framework for content-based image retrieval (CBIR). Discrete wavelet transform (DWT) based Local tetra pattern (LTrP) is used to obtain the feature map from an input image. Decomposition of DWT up to single level and the features obtained from it would make the CBIR system very sensitive to noise. Therefore, decomposition up to three scales is used to...
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