iosr-JVSP   Volume-8 ~ Issue-4 ~ Jul-Aug 2018

ABSTRACT: Speed, reliability and flexibility are the essential requirements for achieving high performance in various applications of Physical and Engineering Sciences. FPGA's are considered to be the ideal devices for maximizing the efficiency and productivity of the system. This paper discusses the development of FPGA based fast acquisition system to determine the plasma characteristics using Langmuir probe in a plasma chamber. The plasma is created using Radio Frequency (RF) power input, operating at a frequency of 2MHz. The RF power pulse repetition rate (PRR) is 2 Hz with ON time of 0.5 msec. The FPGA based embedded system has been prototyped using Very-High-Speed Integrated Circuits Hardware Description Language (VHDL). The FPGA based design consists of various interface modules........

Keywords: FPGA, VHDL, Embedded System, Graphical User Interface.

[1]. Timothy Ryan Brubaker, Pulsed Langmuir Probe Development for small sats.
[2]. M. Nisha, K. J. Saji, R. S. Ajimsha, N. V. Joshi, and M. K. Jayaraj, Characterization of radio frequency plasma using Langmuir probe and optical emission spectroscopy.
[3]. Keke Wang, GuohuiLyu, Shaohua Shang, and Lijuan Zhang, FPGA-based High-speed Data Acquisition System with PCI Bus.
[4]. V. K. Seneca, Vikas Jain, V. K. Srivastava, S. K. Jain, Ajeet Kumar, Deepak Mishra, R. M. Vadijikar, R. Banwari, and S. C. Joshi, Internal Report / RRCAT / 2010-14 (2010).
[5]. S. C. Joshi, et al., Proc. LINAC2014 (Geneva, Switzerland), MOPP124 (2014)..

ABSTRACT: There are various kinds of Network attacks often identifiable by the patterns of data they contain. More complex regular expressions that express these patterns need to be matched at a very high speed. Most hardware-based approaches build the equivalent automata using minimal hardware resources to detect pattern variations. This paper explains the design, structure, and suitability of an optimized hardware-based automata implementation called Equivalence Class Direct Table Synthesis Nondeterministic Finite Automata (ECDRTS-NFA). The optimized approach described in this paper builds upon the earlier published version called Equivalence Class Descriptor Nondeterministic Finite Automata (ECD-NFA). The ECDRTS............

Keywords: ECDs, ECD-NFA, FPGA, LUTs, Throughput.

[1]. J. Aycock, Computer Viruses and Malware. USA: Springer, 2006.
[2]. P. Piyachon and Y. Luo, "Compact state machines for high performance pattern matching, in Proceedings of the 44th Annual Conference on Design Automation - DAC '07, 2007, pp. 493-496.
[3]. M. Roesch, Snort - lightweight intrusion detection for networks, in Proceedings of the 13th USENIX Conference on System Administration, LISA'99, 1999, pp. 229-238.
[4]. (24 July 2013). Bro. Available: http://www.bro.org/download/index.html.
[5]. (24 July 2013). IOS Intrusion Prevention System Deployment Guide. [[Cisco IOS Intrusion Prevention System (IPS)] - Cisco Systems]. Available:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6634/prod_white_paper0900aecd8062acfb.html

ABSTRACT: Millimeter wave imaging is the emerging technique for detection of targets and distinguishes different targets from one another. Millimeter frequency band is the combination of both visible region and infrared region. As a result it has a combined feature of both visible region and infrared region. MM wave imaging is quite useful for imaging because of certain frequencies which have low attenuation and can be able to detect target in low visibility area. In this paper, we focus an area to detect presence of short range targets. Target is focused with some grazing angle of narrow beam width. The returned echoes are detected by 2D array of imaging sensors. This raw data of image is further processed to detect presence of multiple targets and distinguish them.

Keywords: Active and passive imaging, focal plane array, interpolation, linearly frequency modulation, Millimeter frequencies, RCS.

[1]. "Principles of modern radar" Mark A Richards,James A Scheer, William A Holm
[2]. "Principles of modern radar- advanced techniques" James A Scheer, William L Melvin
[3]. "Radar hand book" Skolink
[4]. "An introduction to Airborne Radar" Stimson
[5]. "A 94 GHz imaging radar system" Jan Svedin, Lars-Gunnar Huss

ABSTRACT: Fast Fourier Transform (FFT) algorithms are widely used in many areas of science and engineering. Some of the most widely known FFT algorithms are Radix-2 algorithm and Radix-4 algorithm. In this paper, these two algorithms are implemented and their performances are compared. The key properties, e.g., area and power consumption, of the FFT processor depend mainly on the implementation of butterfly operations. Radix-2 butterfly and Radix-4 butterfly element is described with VHDL and synthesized on FPGA, target device 6slx100fgg484-3. After this the device utilization summary and timing summary is compared. The comparison shows that that 1-D FFT processor using Radix...........

Keywords: Active and passive imaging, focal plane array, interpolation, linearly frequency modulation, Millimeter frequencies, RCS.

[1]. Ediz Çetin, Richard C. S. Morling and Izzet Kale, "An Integrated 256-point Complex FFT Processor for Real-time Spectrum Analysis and Measurement", IEEE Proceedings of Instrumentation and Measurement Technology Conference, vol. 1, pp. 96-101, May 1997
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[4]. K.Sreekanth Yadav, V.Charishma, Neelima koppala, "Design and simulation of 64 point FFT using Radix 4 algorithm for FPGA Implementation", International Journal of Engineering Trends and Technology, Volume-4, Issue-2, 2013
[5]. Markus Puschel, Martin Rotteler, "Cooley-Tukey FFT like algorithm for the discrete traingle transform", IEEE 11th Digital Signal Processing Workshop & IEEE Signal Processing Education Workshop, 2004.I.S.Uzun, A.Amira and A. Bouridane, "FPGA implementations of fast Fourier transforms for real-time signal and image processing", IEEE Proc. Image signal Process, vol. 152, no. 3, pp. 283–296, Jun. 2005.

ABSTRACT: The advances in sensor technologies, embedded processing and wireless connectivity have added to the emergence of wearable, bio implantable devices. These devices actually live on and in us and hence become part of our daily life. They have found use in a large number of domains including personalized health-care, fitness and multimedia. The electronics of a biomedical device consist of energy delivery, analog-to-digital conversion, signal processing, and communication subsystems. Each of these sub blocks must be designed for minimum energy and low power consumption. Dynamic voltage and frequency scaling, clock gating power gating, energy efficient signaling are advanced low power design techniques frequently employed to achieve the stringent energy requirements of.........

Keywords: bio medical, dynamic voltage, energy harvesting, energy storage, power gating.

[1] Karthik Kadirvel, John Carpenter, Brian Lum-Shue-Chan, "Power Management Functions for Energy Harvesting," Power Management Design Line, EE Times, January 8, 2011
[2] V. Raghunathan and P. H. Chou. "Design and power management of energy harvesting embedded systems" ACM/IEEE International Symposium on Low Power Electronics and Design (ISLPED). 2006.369– 374.
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[5] A. Chandrakasan, D. Daly, J. Kwong, and Y. Ramadass." Next generation micro-power systems" IEEE Symposium on VLSI Circuits. 2008 2–5,.

ABSTRACT: The fundamentalobjective of this paper is to execute a multiplier for rapid and low energy applications. Multipliers are the building blocks of elite frameworks like FIR filters, computerized flag processors, and so on in which speed is the commanding variable. There are numerous multiplier structures created to build the speed of polynomial math. Stall calculation is the best calculation utilized for quick exhibitions. This works by presenting a superior multiplier utilizing Modified Radix-4 corner calculation with Redundant Binary Adder to get rapid. A relative investigation of various corner calculations as far as power utilization, delay, zone, vitality and vitality defer item is additionally talked about in this work. Every one of the circuits are reproduced in the Cadence reproduction device utilizing 180nm innovation. The test results demonstrate that the proposed stall multiplier indicates rapid, low vitality and low vitality postpone item contrasted with the current corner multipliers

Keywords: Active and passive imaging, focal plane array, interpolation, linearly frequency modulation, Millimeter frequencies, RCS.

[1]. "Principles of modern radar" Mark A Richards,James A Scheer, William A Holm
[2]. "Principles of modern radar- advanced techniques" James A Scheer, William L Melvin
[3]. "Radar hand book" Skolink
[4]. "An introduction to Airborne Radar" Stimson
[5]. "A 94 GHz imaging radar system" Jan Svedin, Lars-Gunnar Huss