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This paper proposes the design and development of a modular pressure transmitter having wireless data transmission capability. The transmitter and receiver systems are made of completely off-the-shelf components. Transmitter module has a MEMS based pressure sensor. A microcontroller in the transmitter does the analog to digital signal conversion and baud rate setting. Serial data is then sent to a...
The main purpose of this paper is to study the FPGA implementation of two 16 bit PN sequence generator namely Linear Feedback Shift Register (LFSR) and Blum-Blum-Shub (BBS). We have used FPGA to explain how FPGA's ease the hardware implementation part of communication systems. The logic of PN Sequence Generator presented here can be changed any time by changing the seed in LFSR or by changing the...
Bit error rate performance of a FSO link and visibility range are adversely affected by, harsh weather conditions, and atmospheric turbulence like fog, rain, clouds and dry snow. Wavelength of signal and aperture area of optical detector affects quality factor of receiver. This paper presents performance of FSO link with different wavelengths and different aperture area of optical detector. Effects...
This paper presents the design, implementation and measurements of a spirometer based on thermistor based sensor. Respiratory variations are present in the electrocardiogram (ECG) and the photoplethysmogram (PPG). The aim of this study was to investigate these variations in healthy subjects during rest and invoked blood pressure changes. The primary goal was to develop a non-invasive respiration monitor...
Communication is the field of rapid development from the recent past. The system that best utilize the novel performance qualities when combined comes with a tradeoff that must be subjugated to have an enhanced performance. This work mainly considers the integration of the bandwidth efficient M-ary QAM, Multiple Input Multiple Output (MIMO) system and the Orthogonal Frequency Division Multiplexing...
This paper presents a novel single Z-source based seven level multilevel inverter. In this topology single Z-source impedance network is used to boost up the output voltage using shoot through state control. A new PWM technique is implemented by using three reference signals and a triangular carrier signal which are used to generate the PWM signals for inverter switches, and the shoot through state...
Watermarking is a technique of embedding hidden information in multimedia data imperceptibly, such as image, video, audio and text data. Generally, an original image is transformed and coded watermark image data is embedded in frequency domain watermarking models. The proposed work explores the computational analysis of variable scaling factor (a) based invisible image watermarking process using the...
A power electronic circuit to interface small battery energy storage (BES) system with grid is proposed in this paper. BES is essential in micro grid to have power balance and stable operation when there is an intermittent power generation and demand. A single phase bilateral converter proposed here is operated as an inverter when there is no supply from grid and operated as a charging circuit to...
Now a day's low power Design is a essential requirement for This electronic document is a “live” template. The various components of your paper [title, text, heads, etc.] are already defined on the style hardware implementation. Technology moving into deep submicron region causes increase in leakage power. MTCMOS is promising technique for reducing leakage power but use of this technique results in...
A compact proximity fed stacked circular disc microstrip antenna (SCDMA) with dumbbell shaped circular head DGS has been proposed in this work. Proposed DGS structure enhances bandwidth by 204%, reduced average area of both circular patches by 58%, increases radiation efficiency by 30.7% and also improves VSWR by 17%. The simulated antenna exhibits 6.24 dB gain at 5.53 GHz operating frequency and...
Brain-Computer Interface (BCI) system is an advanced and emerging system in the field of computer applications. Every day road accidents are at an increase due to drunken driving and sleepiness. This paper proposes an EEG based BCI system to sense the Oscitancy which can be due to drunkenness and sleepiness. The proposed work consists of two modules, the sensor and microprocessor module and an alarm...
The reconstructed images from block based DCT compression produce visible artifacts at block boundaries due to coarse quantization of coefficients. In this paper a post processing algorithm is proposed for reduces the blocking artifacts without removing perceptual quality. For smoothing and non smoothing regions are removed by modifying a few DCT coefficients, while a smoothing filter is applied for...
The main objective of this paper is to develop a power conditioning system, which can be used to extract the variable solar DC power from sun and convert it into AC power to feed a 3-phase AC load effectively. This paper presented the simulation results of Photovoltaic (PV) power conditioning system for three phase AC loads. The conditioner consists of a diode clamped three level inverter fed by closed...
A multilevel inverter is a power electronic device that is used for high voltage and high power applications, with the added advantages of low switching stress and lower total harmonic distortion (THD), hence reducing the size and bulk of the passive filters. This paper proposes a new topology of a cascaded multilevel inverter that utilizes less number of switches than the conventional topology. Therefore...
In this paper we give the details on Non-Functional Requirements and its importance in various fields. We also investigate the effect of working out for the Non-functional Requirements which leads to the discovery of new Functional Requirements. After the coding phase in the Software Development Life Cycle (SDLC), during the process of articulating the Non-Functional Requirements the software analysts...
In an approach to diagnose the various types of fault, generally occurred in Induction machines, this paper describes a monitoring and analysis system. The induction machine model and its various types of fault are simulated using a Real Time Digital Simulation (RTDS) unit. The signal corresponding to the simulation can be taken out of the RTDS unit which is interfaced with a microcontroller for its...
In various control strategies of Brushless (BLDC) motor, PID controllers are still used due to their simplicity and ease of design. Unfortunately, PID controllers are not robust and their performance deteriorate when the operating conditions change due to the effect of external disturbances, load changes and parameter variations of the motor. A Robust PID controller which is optimized by Genetic algorithm...
Advances in CMOS technology have made MOSFET a serious contender at RF. High frequency performance of the device is characterized by transit frequency ft, maximum frequency of oscillation fmax, minimum noise figure NFmin. This paper presents above figures of merits for optically controlled Silicon N-MOSFET, illuminated by optical source of photon energy greater than bandgap of Silicon. The figures...
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