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Das Gupta J.,Institute of Technology and Marine Engineering | Chanda B.,Indian Statistical Institute
Proceedings - 12th International Conference on Frontiers in Handwriting Recognition, ICFHR 2010 | Year: 2010

Text line segmentation is one of the important steps for offline handwritten text / handwriting recognition. This paper describes a novel method of text line segmentation based on the physical process of writing. The basic concept behind this segmentation method is: two successive handwritten text-line are always non-intersecting. The proof of the theory is explained with a model of pen-tip movement. The line segmentation is done by arranging the centroids of connected components present in the given text document. Experiments show that the proposed method achieves high accuracy for detecting unconstrained text line of handwritten documents. © 2010 IEEE.

Roy B.,Institute of Technology and Marine Engineering
Proceedings - 3rd International Conference on Intelligent Systems Modelling and Simulation, ISMS 2012 | Year: 2012

In this paper we propose a technique for software-implementation of an UART (Universal-Asynchronous- Receive-Transmit) with the goal of getting a customizable UART-core which can be used as a module in implementing a bigger system irrespective of ones choice of implementation platform. Here we have written the core in VHDL (VHSIC hardware description language), implemented using XILINX ISE 10.1 Design suite and tested in SPARTAN-3AN FPGA evaluation kit by interfacing a test circuit with the PC using the RS232 cable. The simulation results as well as the test results are seen to be satisfactory. The area taken and the power consumed are also evaluated. © 2012 IEEE.

Guha D.,University of Calcutta | Biswas S.,Institute of Technology and Marine Engineering
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) | Year: 2012

Characterization of defected ground structure (DGS) prior to employing for suppressing mutual coupling between two antennas has been explored for the first time. Commercial simulator is used and the technique leads to the physical insight into its operation. Compact open-ring DGS is considered as a sample and experimentally verified. © 2012 IEEE.

Biswas S.,Institute of Technology and Marine Engineering | Guha D.,University of Calcutta
AEU - International Journal of Electronics and Communications | Year: 2013

A new technique to characterize an isolated defected ground structure (DGS) is explored. The technique is used to optimize the dimensions of a compact partial-ring DGS to suppress mutual coupling between two E-plane coupled cylindrical dielectric resonator antennas. The optimized design is verified experimentally using a set of fabricated prototypes operating in S-band. A suppression up to 6-7 dB, showing good agreement with the predicted values, is experimentally demonstrated. © 2012 Elsevier GmbH. All rights reserved.

Biswas S.,Institute of Technology and Marine Engineering | Guha D.,University of Calcutta
Progress In Electromagnetics Research M | Year: 2013

A recently developed technique to design and model isolated Defected Ground Structure (DGS) has been examined to control coupling between two adjacent elements in a microstrip array. This is the only technique that can handle isolated DGS and in here, this is explored for the first time in microstrip antenna domain. An X-band design is presented. A set of prototypes are used to obtain measured data which are employed to verify the technique experimentally for microstrip array.

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