A variable-speed controller, for an existing 225 kW fixed-speed wind power generator, is presented in this paper. A sensorless direct torque control algorithm-based controller is proposed for the squirrel-cage induction generator. Generator torque reference is derived based on sensorless maximum power tracking mode algorithm, up to the base speed of the generator. A three-phase front-end converter is used here to deliver the generated power to the grid with unity-power-factor operation at all wind speeds. This algorithm is based on direct activ ....etc

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This Project is very simple and when completed, causes a light-emitting diode (LED) to flash or pulse alternately on and off at a very slow rate, that is, at a low frequency. It could be used as a dummy car alarm indicator. You sometimes see these tiny pulsating lights in expensive cars protected by sophisticated car security systems, warning you that the car alarm is armed and ready.
For this design, the LED flashes on for a brief period and stays off for a relatively longer period. Because additional current is consumed from the battery eve ....etc

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MIMO RADAR SIGNAL PROCESSING:MIMO as a Distributed Radar System
ABSTRACT:

Multiple-input multiple-output (MIMO) radar has been receiving increasing attention in recent years from researchers, practitioners, and funding agencies. MIMO radar is characterized by using multiple antennas to simultaneously transmit diverse (possibly linearly independent) waveforms and by utilizing multiple antennas to receive the reflected signals. Like MIMO communications, MIMO radar offers a new paradigm for signal processing research. MIMO radar possesses sig ....etc

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Multimedia data often have different levels of importance such that more important bits are less error-tolerant. A new rate control method for transporting such multimedia data over parallel wireless links with heterogeneous reliability is proposed. Rate-controlled parallel transmissions (RCPT) of different layers of a multimedia stream with different levels of importance over a wireless channel that support multiple links with heterogeneous reliability can improve the efficiency in resource allocation while satisfying the quality of service re ....etc

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ABSTRACT

Shallow trench isolation (STI) requires a high quality oxide with superior fill capability provided by High Density Plasma (HDP) oxide. Unfortunately, the HDP deposition process can create large within die topographies that are difficult to polish directly using conventional silica slurries. As a result, etch back integration schemes have traditionally been incorporated for STI polish. A more revolutionary approach is the use of Fixed Abrasive (FA) CMP . FA CMP allows direct STI polish with good planarizatio ....etc

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Relay Assisted MIMO Transmission System



Abstract
Relay assisted Multiple Input Multiple Output transmission system (MIMO) are expected to be a part of future infrastructure based wireless networks. Besides coverage extensions, such relays can posses high transmission rates, higher speed and larger capacity than its predecessors. MIMO opens a new dimension for wireless broadband communication, mobile wireless access. In this paper we p ....etc

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With the day to day improvement in the field of medicine the urban society is enjoying a healthy life, but for the people of rural and remote areas even the basic health care is not sufficiently available. For the rural masses to enjoy the breakthroughs in the field of medicine, â„¢Telemedicineâ„¢ can be used. The present form of telemedicine does not suit the Indian scenario due to the described factors. To make telemedicine suitable for Indian conditions we design a low cost, efficient prototype system making use of fixed Wireless In ....etc

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can anyone give report on or any related materials on Monitoring and Transmission of Heavy Vehicles Parameters using Fixed Cellular Terminal..please reply fast

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With the day to day improvement in the field of medicine the urban society is enjoying a healthy life, but for the people of rural and remote areas even the basic health care is not sufficiently available. For the rural masses to enjoy the breakthroughs in the field of medicine, 'Telemedicine' can be used. The present form of telemedicine does not suit the Indian scenario due to the described factors. To make telemedicine suitable for Indian conditions we design a low cost, efficient prototype system making use of fixed Wireless Internet. In ou ....etc

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At present any consignment carried by a vehicle has to travel incommunicado till it reaches the destination. So, both the fleet owner and the persons sending or procuring the consignment have to sit keeping their fingers crossed till the fleet arrives. To track the path of the vehicle and to monitor the various parameters like fuel consumption, kilometers covered and the amount of load in the vehicle an intelligent device would come handy to solve the problem for the fleet operators and the clients. This paper aims at designing an intelligent d ....etc

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