Bp Poddar Institute Of Management And Technology
Bp Poddar Institute Of Management And Technology
Chakraborty S.,Bp Poddar Institute Of Management And Technology |
Chattaraj S.,OmDayal Group of Institutions |
Multidimensional Systems and Signal Processing | Year: 2017
Delivery of airborne precision guided vehicles to pre-designated targets has assumed much importance in recent times. Transfer alignment is concerned with estimation of misalignment with respect to the airborne platform. During first few seconds of the post ejection phase, the trajectory deviates from intended one. Estimation of this deviation in trajectory can also be mapped to the transfer alignment problem. Large misalignment angle makes the system nonlinear while usage of mother measurements in each iteration makes it time varying. Particle filter variants can be designed to improve the quality of estimates but the time complexity increases. This work explores different resampling techniques to find a way to decrease the average time to complete an iteration. This allows more room for parallel execution with a residual evolutionary particle filter that does away with resampling by evolving through several system dynamics, thereby performing better when the knowledge of system dynamics is poor. It is observed that when the two filters are run together, the estimation accuracy improves considerably. The scheme is particularly useful in the time critical post ejection phase. © 2017 Springer Science+Business Media New York
Ghosal S.,Acharya Prafulla Chandra College |
Chakraborty K.,Acharya Prafulla Chandra College |
Mandal B.,Bp Poddar Institute Of Management And Technology
Computational Science and Engineering - Proceedings of the International Conference on Computational Science and Engineering, ICCSE2016 | Year: 2017
The quantum dot cellular automata is one of the various nanostructure based paradigms that have been proposed to overcome the limits being faced by the existing CMOS technology. The prevalent building block for QDCA has been the majority voter which is not functionally complete as it lacks conditional inversion. In an earlier work we have proposed a new architecture for a NAND/NOR based universal gate and shown it to be more compact as compared to the earlier proposed AOI and NNI structures. Landauer’s limit places a lower bound on energy dissipation in conventional circuits which may be overcome by reversible computing. In this paper we have realized several standard reversible gates using our structure and shown those to be much more compact compared to the prevalent Majority voter based design. We have also proposed a new Universal reversible gate and made a comparative study with the popular PERES gate. © 2017 Taylor & Francis Group.
Kole A.,Bp Poddar Institute Of Management And Technology |
Datta K.,National Institute of Technology Meghalaya
Proceedings - 2017 30th International Conference on VLSI Design and 2017 16th International Conference on Embedded Systems, VLSID 2017 | Year: 2017
The problem of synthesis and optimization of reversible and quantum circuits have drawn the attention of researchers in recent years. The typical design flow for such circuits first carries out the step of synthesis in terms of reversible gates, and then maps (decomposes) each reversible gate into equivalent set of quantum gates (e.g. from the NCV library). Since its initial proposal in realizing a Toffoli gate using quantum gates, several structural modifications have been proposed in the literature in order to reduce the cost of the generated netlist. The most recently introduced approach produces improved NCV cascade successively by partitioning the control lines of the given Toffoli gate in all possible ways, and replacing intermediate Toffoli gates with optimized equivalent NCV cascades form a catalog. In this approach the complexity of decomposing large Toffoli gates is high. In the present paper an efficient heuristic for partitioning the control lines of a given Toffoli gate is proposed. This heuristic is used for decomposition of the Toffoli gate without using any NCV catalog, after applying a template based optimization step. The cost of resultant circuit is similar to or sometimes better than the one reported by previous approaches. © 2016 IEEE.
Mandal S.,Bp Poddar Institute Of Management And Technology |
Ghosh A.,University of Calcutta
Optik | Year: 2012
We study the intensity point spread function (IPSF) of a uniaxial birefringent lens sandwiched between two linear polarizers under broadband illumination having flat-top spectral profile. The optic axis of the birefringent crystal is perpendicular to the lens axis. For monochromatic input illumination, a low-power birefringent lens offers enhanced resolution under parallel-polarizers configuration and apodization under crossed-polarizers configuration with a single focus as well. At a relatively high value of birefringence parameter, the proposed system behaves as a double-focus lens. The present communication uses a novel technique to study the effect of polychromatic illumination on the imaging characteristics of birefringent lenses. The studies reveal that the imaging characteristics of the low-power birefrigent lens does not deteriorate considerably under polychromatic illumination. However, for a polychromatic beam with large bandwidth, the imaging behavior of the system having high birefringence parameter deviates appreciably from that under strictly monochromatic illumination. The said system even loses its inherent bi-focal nature due to depolarization of polarized polychromatic light upon passage through the birefringent crystal. © 2011 Elsevier GmbH.
Sanyal N.,Bp Poddar Institute Of Management And Technology |
Chatterjee A.,Jadavpur University |
Munshi S.,Jadavpur University
Expert Systems with Applications | Year: 2011
In this paper an Adaptive Bacterial Foraging is proposed for fuzzy entropy optimization when it is applied to the segmentation of gray images. The proposed algorithm represents the improved version of classical bacterial foraging algorithm which is a newly developed stochastic optimization tool. This optimization technique is applied for optimization of the fitness function which is fuzzy entropy. Classical bacterial foraging algorithm is improved by adaptively selecting the exploitation and exploration state in chemotaxis of E.coli. bacteria. The newly developed algorithm is applied on benchmark gray images and proved to be suitable for thresholding based image segmentation. © 2011 Elsevier Ltd. All rights reserved.
Saha P.,Bp Poddar Institute Of Management And Technology |
Saha D.C.,Prabhu Jagatbandhu College |
Ray A.,Jadavpur University |
Chowdhury A.R.,Jadavpur University
European Physical Journal: Special Topics | Year: 2015
Effects of memristor on non-linear dynamical systems exhibiting chaos are analysed both form the view point of theory and experiment. It is observed that the memristive system has always fewer number of fixed points than the original one. Sometimes there is no fixed point in the memristive system. But its chaotic properties are retained. As such we have a situation known as hidden attractor because if it is a stable fixed point then the attractor does not evolve from its basin of attraction(obtained from its stable fixed point) or if there is no fixed point, the question of basin of attraction from fixed point does not arise at all [1, 2]. Our analysis gives a detailed accounts of properties related to its chaotic behavior. Important observations are also obtained with the help of electronic circuits to support the numerical simulations. © 2015, EDP Sciences and Springer.
Gazi N.H.,St Xaviers College |
Das K.,Bp Poddar Institute Of Management And Technology
Nonlinear Analysis: Real World Applications | Year: 2010
The paper deals with the dynamical behavior of plankton population ecosystem, mainly found in Sunderban mangrove area. The ecosystem is represented by a set of two dimensional non-linear differential equations involving zooplankton-phytoplankton population. Plankton populations undergo dramatic changes in marine ecology. We propose a description of plankton communities as excitable systems which resemble the behavior of excitable media. The delay parameter dependency of the various 'excitable' phenomena, trigger mechanism, threshold, and slow recovery, is clear, and permits ready investigation of the influence of properties of the physical environment, including variations in nutrient fluxes, temperature or population levels. We have analyzed the stability and bifurcation of the model system with and without delay. We have shown the existence and uniqueness of limit cycles in the rapid growth of the plankton population. We also studied the model system into a stochastic one, by incorporating random fluctuations of the environment. And we study the stochastic stability of the dynamical system in mean square sense around the interior equilibrium. © 2009 Elsevier Ltd. All rights reserved.
Khan G.,Bp Poddar Institute Of Management And Technology |
Sengupta S.,Bp Poddar Institute Of Management And Technology |
Sarkar A.,National Institute of Technology Durgapur |
Debnath N.C.,Winona State University
23rd International Conference on Software Engineering and Data Engineering, SEDE 2014 | Year: 2014
Cloud computing refers to a web service model that delivers on demand based services over the network. Agent based Cloud computing technology has gained more importance recently due to the rapid increase in no of clouds and their services. Modeling and Design methodologies for agent based cloud infrastructure have not taken a shape as yet. One of the most challenging domains is to model various agent based architecture of SOA in cloud computing environment to make the SOA system modeling more reliable and robust. To support their software development process this paper deals with modeling of an abstraction layers of SaaS architecture called Enterprise Cloud Bus, using UML 2.0 to focusing on service interaction, service collaboration, service discovery, service scheduling and service dispatching. © ISCA, SEDE 2014.
Goswami R.,Bp Poddar Institute Of Management And Technology
AIP Conference Proceedings | Year: 2014
In the present work the measurement of the dc conductivity of graphite clay nanocomposite at low temperature has been undertaken. The resistivity curve can be fitted to a polynomial function with the temperature exponent varying from 0.5 - 1 for 63,50 and 40% graphite in clay. The activation energy has also been extracted for all three samples. The corresponding variation of resistivity with temperature and the variation in temperature exponent and activation energy proves that the composite behaves like a semiconductor and its semiconducting trend can be suitably modified with the change in graphite concentration. © 2014 AIP Publishing LLC.
Mandal S.,Bp Poddar Institute Of Management And Technology
Optik | Year: 2014
Polychromatic or white-light optical transfer function (OTF) is put forward as a criterion to evaluate the performance of a uniaxial birefringent lens sandwiched between two linear polarizers. The optic axis of the birefringent crystal is perpendicular to the lens axis. The results show that the same system may be adapted for both enhanced resolution and apodization just by rotating any of the polarizers included in the system even under broadband illumination. The proposed system may also be exploited for image processing applications under polychromatic input illumination. © 2013 Elsevier GmbH.