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With the advent of powerful long-range radars and beyond visual range (BVR) missiles, pilots are increasingly reliant on the sensors on board the aircraft to make tactical decisions. Real time decisions require the pilot to assimilate and process large amounts of data from multiple sources in a short span of time. This problem is further compounded when there are multiple unknown targets or, in the...
The IC technology is tremendously growing day by day to improve the performance of the circuits structure in a compact and high density form. This tiny IC arena started and introduced the Quantum-dot cellular Automata (QCA) to overcome the pitfalls of conventional CMOS technology throughput. In order to bring a new phase of IC design in an optimized & efficient manner, we proposed, cascading serial...
In this paper, a low-power, active-RC fifth order elliptic filter is designed with bandwidth of 40MHz. The filter designed is based on single-opamp resonator, which consumes less power compared to the standard filter design with less number of opamp. First filter is designed using MATLAB to get fifth order standard transfer function which is further used to calculate R and C values of the filter....
The multichip packaging techniques have evolved over the years and have resulted in many solutions towards 3D integrated circuits. The key component to these technologies is Through Silicon Via. Typical TSV structures (2.5 micron diameter and 20 micron length and 5 micron diameter and 50 micron length) are analyzed using HFSS, with a view to generate data and understanding of TSV performance, specific...
The biological world is an ideal place for seeking inspiration for developing mathematical optimization algorithms. In this paper we propose two hybrid stochastic optimization algorithms that bear resemblance to the sexual reproduction cycle of Jellyfish and asexual reproductive cycle of species of Hydra. The performance of these two algorithms are investigated against other common optimization algorithms...
Operating junction temperature of LEDs is linked directly to lifetime, long term reliability and failure modes of LED luminaires. It is important to measure the operating junction temperature to assess the health of a LED luminaire / solid state lighting product. Measuring the junction temperature of LEDs is a difficult task as in modern LED luminaires the tiny LEDs are surrounded by optical system...
Today software industry is suffering a lot because of software piracy. With the increased use of websites, the plagiarism of softwares and websites is also increasing. This threatens the intellectual property rights of JavaScript developers. Hence it is our small effort to safeguard the intellectual rights of developers by introducing a system which uses the website's unique behavior at run-time as...
Hadoop is a very efficient distributed processing framework. It's based on map-reduce approach where the application is divided into small fragments of work, each of which may be executed on any node in the cluster. Hadoop is very efficient tool in storing and processing unstructured, semi-structured and structured data. Unstructured data usually refers to the data stored in files not in traditional...
The purpose of this project was to achieve long distance communication with mobile robots that act as a surrogate to the user, thus being a type of telepresence robots. The most accessible way of implementing this was in exploiting the cellular 2G-3G network. Research on implementation of servo motors with DTMF keys was conducted, potraying a necessity of enhancing the DTMF communication model. We...
Music data analysis and retrieval has become a vital and challenging research field due to the increasing need to manage large amount of musical data present on multimedia. Music analysis deals with extracting various features, which describe the music signal, and use those features to process the music samples for various applications such as indexing, retrieval, automatic classification, etc. This...
Charge equalization of series connected energy storage elements (batteries and super-capacitors) has significant ramifications on their life and also reduces their operational hazards. This paper reviews the current status and art of power electronics converter topologies employed for charge equalization of Li-ion battery and super-capacitors based energy storage systems. Charge equalization schemes...
In this paper comparative analysis is carried out for power transmission, for line of 1200km length at 50Hz and 50/3Hz. Test system of 765kV and 1200kV are selected as two transmission voltage levels. Simulation is carried out on test system over Matlab simulink environment. In steps of 25%, computation of sending & receiving end voltages, active power transfer capacity, power factor and compensation...
Renewable Energy Sources are gaining momentum and are consistently increasing their footprint in the power sector due to increased awareness of environmental impacts from widespread utilization of fossil fuels. Solar-energy-based photovoltaic (PV) systems are quickly growing source of distributed generation (DG) and are connected to the power distribution system. The advancement in the field of power...
Spread spectrum modulation finds important place in wireless communication primarily due to its application in Code Division Multiple Access (CDMA) and so on. One of the critical issue in such modulation is the generation of spreading sequence. This paper presents a hardware approach for design of chaotic spreading sequence for application in a Direct Sequence Spread Spectrum (DS SS) system for a...
Multipliers are the key components of systems viz. FIR filters, Microprocessors, Digital Signal Processors etc. which demands high performance. The performance of these applications mainly depends on the numbers of multiplication done in unit time. In real time multipliers the speed and power are the major criteria, thus faster and power efficient multipliers are needed. This paper focuses on the...
Memory is the fundamental building block of any digital system. Most of the portable devices used today incorporate SRAM arrays which are vital memory elements. The significant role of reversible logic in designing such circuits is to reduce or completely eliminate power dissipation. According to survey, only few design methodologies have been proposed for the SRAM array and to the best of our knowledge,...
This paper presents VLSI implementation of DCT algorithms for HEVC application. Here transform units (TU) of sizes 4×4 to 16×16 are implemented in both conventional method and partial butterfly model using multiplier-less multiple constant methods to reduce the hardware cost. Both the methods are designed using Verilog HDL, verified and compared for the realisation of hardware cost. We found that...
To get reduced area and power overheads in Synchronous elasticity implementation circuits. We are using combinations of various elasticity approaches with specific implementation technique. Elasticity refers a circuit in which circuits can tolerate arbitrary latency and delay variations in their computation units as well as communication channels. This paper gives different optimization approaches...
The paper presents the details of development of the fiber optic link that will be used to interconnect the various analog signals. Speciality of the link is that the analog signal of frequency up to 1 kHz is transmitted through digital technology. In order to resolve the problem of DC balance and clock/data recovery during the fiber optic data transmission, paper gives a simple and practical solution...
Wearable devices such as Samsung Galaxy Gear enable intuitive interaction with media devices via hand gestures. The hand gestures are detected using the inertial sensors present in wearable devices. Existing sensor based gesture detection algorithms have limitations which prevent its use in smart wearable devices and smart phones. There are two major limitations, one is gesture spotting in a stream...
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