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12 articles for “Digital Signal Processor (DSP)”
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Research ArticleOpen accessIn the keywordsA Novel Reconfigurable Execution Core for Merged DSP MicrocontrollerA. K. Rath, P. K. MeherThe study presents an execution core which can be reconfigured either for calculation of digital convolution or for computation of discrete orthogonal transform by appropriate local buffer initialization of processing cells. It is shown that the data flow pattern can be changed by a single bit control signal. The proposed core can be connected to port 1 of Intel 8051 … …Journal of Computer Science, Vol. 3, Issue 10 · 31 Oct 2007 · 6,483 accessesView PDFCite
Research ArticleOpen accessIn the keywordsArtificial Neural Network Based Rotor Capacitive Reactance Control for Energy Efficient Wound Rotor Induction MotorK. Ranjith Kumar, S. Palaniswami, K. Siva KumarProblem statement: The Rotor reactance control by inclusion of external capacitance in the rotor circuit has been in recent research for improving the performances of Wound Rotor Induction Motor (WRIM). The rotor capacitive reactance is adjusted such that for any desired load torque the efficiency of the WRIM is maximized. The rotor external capacitance can be controlled using a dynamic … …Journal of Computer Science, Vol. 8, Issue 7 · 26 May 2012 · 7,162 accessesView PDFCite
Research ArticleOpen accessIn the keywordsField Programmable Gate Arrays based Design, Implementation and Delay Study of Braun's MultipliersMuhammad H. Rais, Mohammed H. Al MijalliProblem statement: Parallel array multipliers are required to achieve high execution speed for Digital Signal Processing (DSP) applications. Approach: The purpose of this article is to investigate Field Programmable Gate Arrays (FPGAs) implementation of standard Braun’s multipliers on Spartan-3AN, Virtex-2, Virtex-4 and Virtex-5 FPGAs using Very high speed integrated circuit Hardware Description Language (VHDL). The delay study was analyzed using … …Journal of Computer Science, Vol. 7, Issue 12 · 22 Oct 2011 · 6,677 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDesign of a Merged DSP Microcontroller for Embedded Systems using Discrete Orthogonal TransformA. K. Rath, P. K. MeherIn this paper we have proposed the design of a DSP microcontroller where the processor load is significantly reduced by relegating the math-intensive DSP algorithm to dedicated transform computing modules. It is shown that the use of such transform modules will facilitate scalability, reusability and flexibility for implementation of wide varieties of DSP functionalities. Moreover, it would be possible to … …Journal of Computer Science, Vol. 2, Issue 5 · 31 Aug 2006 · 6,918 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Low Cost Design Solution - DSP Based Active Power Factor Corrector for SMPS/ UPS( Single Phase)Samia Pillai Pitchai, B. UmamaheswariAs per international agency regulation (IEC 1000-3-2/EN 61000-3-2) and market expectation, it is important to reduce current harmonics in the AC line current drawn by SMPS/ UPS connected to AC Mains as source and also it is desired by the user to deliver maximum power output by achieving unity power factor. To achieve the above objectives in SMPS/ UPS, APFC … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 6,896 accessesView PDFCite
Research ArticleOpen accessIn the abstractAndroid Based Energy Aware Framework for Porting Legacy ApplicationsNaeem Zafar AzeemiTrend is growing towards using complex multimedia functions on smaller devices. In this study, we explore the effect of migrating legacy signal processing software applications algorithms from large form factor devices to the smaller one such as handheld mobile devices known as Energy Conscious Mobile Computing Systems (EConMCS). We concentrate on Source Code Volatility (SCV), including inherent algorithm complexity and … …American Journal of Applied Sciences, Vol. 11, Issue 12 · 3 Jan 2015 · 6,288 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Fuzzy Logic Maximum Power Point Tracking Controller for Photovoltaic SystemRasoul Rahmani, Mohammadmehdi Seyedmahmoudian, Saad Mekhilef, Rubiyah YusofIn this study, simulation and hardware implementation of Fuzzy Logic (FL) Maximum Power Point Tracking (MPPT) used in photovoltaic system with a direct control method are presented. In this control system, no proportional or integral control loop exists and an adaptive FL controller generates the control signals. The designed and integrated system is a contribution of different aspects which includes … …American Journal of Applied Sciences, Vol. 10, Issue 3 · 5 Mar 2013 · 7,870 accessesView PDFCite
Research ArticleOpen accessIn the abstractBraun's Multipliers: Spartan-3AN based Design and ImplementationMuhammad H. Rais, Mohammed H. Al MijalliProblem statement: Multiplication is an essential airthematic operation for common Digital Signal Processing (DSP) applications, such as filtering and Fast Fourier Transform (FFT). To achieve high execution speed, parallel array multipliers are widely used. Approach: The field Programmable Gate Arrays (FPGAs) is currently the dominant and viable technology that could be implemented and reconfigured at the same time. Results: The … …Journal of Computer Science, Vol. 7, Issue 11 · 18 Aug 2011 · 6,909 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Software Agent for Speech Abiding SystemsR. Manoharan, K. Vivekanandan, V. SundaramProblem statement: In order to bring speech into the mainstream of business process an efficient digital signal processor is necessary. The Fast Fourier Transform (FFT) and the butter fly structure symmetry will enable the harwaring easier. With the DSP and software proposed, togetherly established by means of a system, named here as “Speech Abiding System (SAS)”, a software agent, which … …Journal of Computer Science, Vol. 5, Issue 2 · 28 Feb 2009 · 7,744 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Low-Memory Reference FFT on Digital Signal ProcessorYi-Pin Hsu, Shin-Yu LinProblem statement: In order to improve and implement Fast Fourier Transform (FFT), in general, an efficient parallel form in digital signal processor is necessary. The butterfly structure is an important role in FFT, because its symmetry form is suitable for hardware implementation. Although it can perform a symmetric structure, the performance will be reduced under the data-dependent flow characteristic. Even … …Journal of Computer Science, Vol. 4, Issue 7 · 31 Jul 2008 · 7,142 accessesView PDFCite