Abir J. Mondal

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Analog-to-digital converters (ADCs) are needed in all those applications, which interface with the analogue world and exploit the digital processing of data. As digital processing is more and more gaining ground over analogue signal processing, the importance of ADCs correspondingly increases. The Flash type ADC, also known as Direct Conversion ADC, uses a(More)
As the conventional irreversible logic dissipates power for losing bits of information, computing engines has to be designed that do not require energy dissipation but only if computation is done logically reversible. Hence, research on reversible logic has been extensively increased now-a-days for its application in Quantum Computing, nanotechnology, QCA(More)
This paper is a study of linear phase low pass FIR filter design using different particle swarm optimization techniques (PSO). FIR filter design is basically a multi-modal optimization problem. Evolutionary algorithms like particle swarm optimization (PSO) can be used for the design of linear phase FIR low pass (LP) filter. Different improved particle swarm(More)
Diffuse gliomas are lethal tumors of the central nervous system (CNS) characterized by infiltrative growth, aggressive nature, and therapeutic resistance. The recent 2016 WHO classification for CNS tumors categorizes diffuse glioma into two major types that include IDH wild-type glioblastoma, which is the predominant type and IDH-mutant glioblastoma, which(More)
A discrete cosine transform (DCT) is described and a technique to compute it using fast Fourier transform (FFT) is developed. In this work, DCT of a finite length sequence is obtained by incorporating CORDIC methodology in radix-2 FFT algorithm. The proposed methodology is simple to comprehend and maintains a regular structure, thereby reducing(More)
Present design methodologies are integrating 10 to 100 embedded functional and storage blocks in a single system on chip and the number is going to increase in the near future. The bus based interconnections are not a suitable choice for MPSoC because of power and latency issue. To address the bus bottleneck for multi core chips, Networks on Chip (NoCs)(More)
Discrete cosine transform (DCT) is the most widely used transformation technique in the field of signal processing particularly in the areas of image data. This paper addresses the design of parallel architectures for computing DCT using CORDIC. It concentrates on indirect methods, which avoids decomposition of direct DCT equation. In this paper, CORDIC(More)