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This paper deals with identification and control of a non linear Air flow process. The objective of the present work is to control the flow rate of air through the process pipe line. The process is identified as a first order plus time delay process using real time data. The Model validation is also done. The PI controller's parameters are tuned using conventional and optimization techniques. The...
Wavelet transform has received greater attention in fault analysis due to its ability in analyzing the travelling waves than conventional methods of analysis. In this paper, the method using wavelet transforms for detecting a HVDC transmission line faults is proposed after simulating the HVDC system for various faults. The simulation results show that the application of wavelet technique leads to...
Heart failures are of increasing importance due to increasing life expectation. For clinical diagnosis parameters for the condition of hearts are needed and can be derived automatically by image processing. Accurate and fast image segmentation algorithms are of paramount importance for a wide range of medical imaging applications. Level set algorithms based on narrow band implementation have been...
In deep sub-micrometer (DSM) regime the on-chip interconnect delay is significantly more dominating than the gate delay. Several approaches have been proposed to capture the interconnect delay accurately and efficiently. By interpreting the impulse response of a linear circuit as a probability distribution function (PDF), Elmore first estimated the interconnect delay. Several other approaches like...
This paper presents a new image coding technique using adaptive wavelet packet and multistage vector quantization. Wavelet packets are generalization of wavelet transform, capable of providing arbitrary frequency resolution to meet signal's spectral behavior. Image properties, filter and cost function are the three prime factors which are commonly used to select wavelet packet basis. In this paper,...
The generation of membership function for fuzzy system is a challenging problem. The response of fuzzy controller is highly dependent on the membership function which is one of the design parameter in fuzzy system. The optimization of membership function can be viewed as identification problem for a nonlinear dynamic system. This paper presents an Adaptive Neuro Fuzzy Inference System (ANFIS) based...
The increased need for underwater robotic systems for exploration of underwater resources has resulted in the development of advanced control systems and technologies to overcome the challenging issues of underwater navigation and control. Developing efficient control schemes for underwater robots to maneuver in the constrained environments, overcoming the external disturbances, has been a real challenge...
We propose two new schemes for segmentation of images with uneven lighting conditions. These are based on adaptive window selection. The first one is a window merging method based on Lorentz information measure (LIM) but the second one is a window growing method using the notion of entropy. We propose two new window merging criterion where the window merging is carried out based on linear combination...
This paper addresses the issue of blocking pattern selection to reduce both leakage and peak power consumption during circuit testing using scan-based approach. The blocking pattern is used to prevent the scan-chain transitions to circuit inputs. This though reduces dynamic power significantly, can result in quite an increase in the leakage power and peak power. We have presented a novel approach...
ICT plays an indispensable role in the overall development of rural areas, especially in developing economies. There is an urgent need to bring the rural areas into the mainstream by providing them last mile connectivity, especially during natural disasters and calamities, when other modes of communications are severely hampered. This paper describes a low cost innovative solution for providing internet...
Summary form only given. The rapid developments of power electronic technologies, microprocessor/digital signal processor based control and estimation techniques and introduction of high power semiconductors have resulted in an unprecedented growth in the high power high performance AC drives as demanded by automation industry over the past decade. In this lecture, a brief technology review on the...
Summary form only given. The lecture deals with the recent activities carried out in the Laboratory of Industrial Automation of the University of Padova, Italy, in the field of electric propulsion systems for light vehicles. Two projects are illustrated. The first project has been completed and was concerning with an electric tilting 3-wheel vehicle. The project was aimed at showing the possibilities...
It has long been recognized that any adaptive controller can be characterized by an admissible controller set and a data-dependent cost function that partially orders these controllers. In this talk we discuss the unfalsified control concept, which involves expressing adaptive control cost functions in terms of certain controller-dependent `fictitious' signals used to evaluate stability and performance...
The Induced Draft (ID) fans and Forced Draft (FD) fans provide control for draft and forced air zoning of fuel burned furnaces of steam generation plant of a thermal power plant. The ID fan exhausts flue gases from the furnace and induces combustion air into the furnace by having the furnace operated under negative pressure. Forced Draft (FD) fans are used for supplying the combustion air into the...
In a hybrid distributed generation system (HDGS), electric power is derived from more than one energy sources. These sources are, in general, a mix of non-conventional (e.g. wind, photovoltaic etc.) and/or conventional sources. An HDGS can either be grid connected or stand alone system. In what proportion should the energy be drawn from each source of the HDGS is a critical issue which affects the...
This paper presents the mutual coupling (S21) between two identical T-shaped monopole antenna loaded with an annular dielectric resonator for varying separations. The results for mutual coupling of these antennas indicate the applicability of these antennas as array elements.
Cellular Automata (CA) is a novel approach for designing byte error-correcting codes. The regular, modular and cascaded structure of CA can be economically built with VLSI technology. In this correspondence, a modular architecture of CA based (32, 28) byte error correcting encoder and decoder has been proposed. The design is capable of locating and correcting all double byte errors. CA-based implementation...
As AND-XOR network results in much better realization and requires fewer product terms than AND-OR realization, it network has encouraged researchers to look for efficient minimization and synthesis tools for their realization. Among several canonical representations of AND-XOR networks, popular and most testable one is the fixed polarity Reed Muller (FPRM) form. In this paper we have used GA (genetic...
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