Conferences related to Discrete Fourier Transform

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2020 IEEE International Conference on Image Processing (ICIP)

The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2020, the 27th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.


2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.


2020 IEEE International Symposium on Circuits and Systems (ISCAS)

The International Symposium on Circuits and Systems (ISCAS) is the flagship conference of the IEEE Circuits and Systems (CAS) Society and the world’s premier networking and exchange forum for researchers in the highly active fields of theory, design and implementation of circuits and systems. ISCAS2020 focuses on the deployment of CASS knowledge towards Society Grand Challenges and highlights the strong foundation in methodology and the integration of multidisciplinary approaches which are the distinctive features of CAS contributions. The worldwide CAS community is exploiting such CASS knowledge to change the way in which devices and circuits are understood, optimized, and leveraged in a variety of systems and applications.


2020 IEEE Power & Energy Society General Meeting (PESGM)

The Annual IEEE PES General Meeting will bring together over 2900 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more


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Periodicals related to Discrete Fourier Transform

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Broadcasting, IEEE Transactions on

Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.


Circuits and Systems I: Regular Papers, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


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Most published Xplore authors for Discrete Fourier Transform

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Xplore Articles related to Discrete Fourier Transform

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Realization of Discrete Fourier Transform and Inverse Discrete Fourier Transform on One Single Multimode Interference Coupler

IEEE Photonics Technology Letters, 2011

In this letter, we propose to realize optical discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) on one single multimode interference (MMI) coupler. In comparison to the previous MMI coupler-based DFT device, this device does not require any couplers or cascaded structures. The simulation results show that it can realize the DFT/IDFT precisely.


Fully fledged versus simple fractional discrete Fourier transform of type IV

2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS), 2012

The fractional discrete Fourier transform of type IV (FDFT-IV) is a generalization of the discrete Fourier transform of type IV (DFT-IV). The paper presents a fully-fledged definition for the FDFT-IV which necessitates the availability of orthonormal eigenvectors of the DFT-IV matrix G. This definition is shown to outperform the simple definition which is just a linear combination of the signal, ...


Windowed r-point update algorithm for Discrete Fourier Transform

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC), 2013

In the real-time signal processing of the infinite data sequence, a portion of the sequence of length N is sampled by windowing and Discrete Fourier Transform (DFT) of that portion is computed. After computation of DFT, new input data points are shifted into the window and old data points are spilled out from the window. After shifting a new DFT ...


Systolic Variable Length Architecture for Discrete Fourier Transform in Long Term Evolution

2012 International Symposium on Electronic System Design (ISED), 2012

A novel design for the implementation of the 2<sup>M</sup> x 3<sup>P</sup> x 5<sup>Q</sup> point Discrete Fourier Transform (DFT) computation for Single Carrier-Frequency Division Multiple Access (SC-FDMA) systems as defined by the Long Term Evolution standard is proposed. The design is based on the Systolic Architecture. The decomposition of the DFT computation into factors of two, three, four and five is ...


Modified Discrete Fourier Transform Algorithm for Parameter Estimation of Sinusoidal Signal with Decaying DC Offset

2017 10th International Conference on Intelligent Computation Technology and Automation (ICICTA), 2017

This paper proposes a modified discrete Fourier algorithm for parameter estimation of sinusoidal signal with decaying direct current (DC) offset. First, the sinusoidal signal parameter estimating error caused by the decaying DC offset in traditional Fourier algorithm is analyzed. Then, by carrying out discrete Fourier transform (DFT) twice every half a period on the sinusoidal signal which is affected by ...


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Educational Resources on Discrete Fourier Transform

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IEEE-USA E-Books

  • Realization of Discrete Fourier Transform and Inverse Discrete Fourier Transform on One Single Multimode Interference Coupler

    In this letter, we propose to realize optical discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) on one single multimode interference (MMI) coupler. In comparison to the previous MMI coupler-based DFT device, this device does not require any couplers or cascaded structures. The simulation results show that it can realize the DFT/IDFT precisely.

  • Fully fledged versus simple fractional discrete Fourier transform of type IV

    The fractional discrete Fourier transform of type IV (FDFT-IV) is a generalization of the discrete Fourier transform of type IV (DFT-IV). The paper presents a fully-fledged definition for the FDFT-IV which necessitates the availability of orthonormal eigenvectors of the DFT-IV matrix G. This definition is shown to outperform the simple definition which is just a linear combination of the signal, its DFT-IV and their flipped versions.

  • Windowed r-point update algorithm for Discrete Fourier Transform

    In the real-time signal processing of the infinite data sequence, a portion of the sequence of length N is sampled by windowing and Discrete Fourier Transform (DFT) of that portion is computed. After computation of DFT, new input data points are shifted into the window and old data points are spilled out from the window. After shifting a new DFT has to be calculated for updated data sequence. The algorithm developed in this research is capable of updating the previously calculated DFT after shifting the data sequence over the window and reflects DFT of the updated data sequence, using less computation than directly evaluating the new transform. Previously developed algorithms were limited to a single point step between successive windows. In this research this result is extended to handle larger step sizes, i.e. the algorithm is capable to update a DFT sequence after shifting r additional data points into the window and spilling out of r old points from the window, where 1 ≤ r ≤ log2N. This Algorithm reduces the computational order by a factor of (1/ r) log2N. The algorithm is developed for the data sequence windowed by Rectangular window and Bartlett window.

  • Systolic Variable Length Architecture for Discrete Fourier Transform in Long Term Evolution

    A novel design for the implementation of the 2<sup>M</sup> x 3<sup>P</sup> x 5<sup>Q</sup> point Discrete Fourier Transform (DFT) computation for Single Carrier-Frequency Division Multiple Access (SC-FDMA) systems as defined by the Long Term Evolution standard is proposed. The design is based on the Systolic Architecture. The decomposition of the DFT computation into factors of two, three, four and five is implemented by a recursive invocation of the Cooley- Tukey Algorithm, with the individual DFTs within each Cooley Tukey iteration implemented using the Winograd Fourier Transform Algorithm (WFTA). The proposed architecture is superior to the Intellectual Property (IP) cores proposed by Xilinx R in that the clock frequency requirements are reduced by a factor of up to 5.2 (approx), resulting in significant savings in the total power dissipation.

  • Modified Discrete Fourier Transform Algorithm for Parameter Estimation of Sinusoidal Signal with Decaying DC Offset

    This paper proposes a modified discrete Fourier algorithm for parameter estimation of sinusoidal signal with decaying direct current (DC) offset. First, the sinusoidal signal parameter estimating error caused by the decaying DC offset in traditional Fourier algorithm is analyzed. Then, by carrying out discrete Fourier transform (DFT) twice every half a period on the sinusoidal signal which is affected by the decaying DC component, two estimating parameters of fundamental frequency component of the sinusoidal signal are gotten. Using the two estimating parameters, the fundamental frequency component parameters, which are immune to the effect of the DC offsets, are estimated without calculating the decaying DC component parameters. At last, the effectiveness and the feasibility of the algorithm are proved by the simulation results of both numerical simulation signal and ATP/EMTP simulated fault signal.

  • Highly concurrent reduced-complexity 2-D systolic array for discrete Fourier transform

    A simple two-dimensional (2-D) architecture is derived for highly concurrent systolization of the discrete Fourier transform (DFT). The concurrency of computation has been enhanced, and complexity is minimized by the proposed algorithm where an N-point DFT is computed via four inner-products of real- valued data of length ap(N/2). The proposed structure offers significantly lower latency, higher throughput, and involves nearly half the minimum of the area-time complexity of the existing multiplier-based DFT structures. It is found that the 2-D DFT using proposed one-dimensional (1-D) structure has nearly half the area-complexity and less than one-fourth of area-time complexity of the existing structures. Besides, it is also found to have nearly half the area-time complexity of the existing multiplierless DFT structure. Unlike some of the existing structures, the proposed one can be used for the DFT of any transform-length and does not involve tag-bit control

  • Analysis on recursive discrete fourier transform FLL based on delayed signal cancellation-PLL method under frequency variations

    In this paper, RDFT(Recursive Discrete Fourier Transform) FLL(Frequency Locked Loop) based on DSC-PLL(Delayed Signal Cancellation Phase Locked Loop) is proposed for coping with frequency variation. This method shows significant performance for detection of fundamental positive sequence component voltage when the grid voltage is polluted by grid harmonics and frequency variation. The frequency tracking technique of DSC-PLL is tracking the drift in the phase by the RDFT and TEO(Teager Energy Operator) concept. The proposed RDFT-FLL based on DSC PLL is to present the analysis on method and performance under frequency variations. These compensation algorithms can correct for discrepancies of changing the frequency within maximum 35ms and improve traditional DSC-PLL.

  • Harmonic analysis in power systems with Discrete Fourier Transform

    Harmonics has become more significant issue due to the increasing of utilization of the non-linear loads and switching elements such as inverter on the power system recently. Harmonics disrupts the shape of the current and voltage signals in power systems and leads to many problems in power systems. It has made harmonic analysis necessary on the power system. Harmonics has become more significant issue due to the increasing of utilization of the non- linear loads and switching elements such as inverter on the power system recently. In this study a method is designed to obtain a basic signal by using Discrete Fourier Transform (DFT) in order to determine harmonics on power systems. The simulation of this method has been implemented by using Matlab/Simulink software package.

  • Performance analysis of different DNA to numerical mapping techniques for identification of protein coding regions using tapered window based short-time discrete Fourier transform

    Prior to applying the digital signal processing techniques for identification of protein coding regions, mapping of DNA alphabet into numerical sequences is necessary. In this paper, the performance of existing DNA to numerical mapping techniques is analyzed at the nucleotide level for the identification of protein coding regions using tapered window based short-time discrete Fourier transform (ST-DFT) method applied to the GENSCAN test set. The results show better identification accuracy for Voss, z-curve and tetrahedron mapping technique as compared to other mapping techniques when tapered windows are used for ST-DFT method.

  • Fault detection in direct current transmission lines using discrete fourier transform from single terminal current signals

    Line commutated converter based high voltage transmission line fault current rises instantly due to the absence of inductance as which is present in ac. In dc currents there is no natural current zero so interruption of current is difficult and therefore the focus of the paper is to identify the fault in less time so that trip command can be initiated to the dc breaker. The dc lines are economical for long length so at far end distance fault identification is essential. The converter control in dc transmission lines control the power and provides synchronous interconnection between two ac systems. The discrete Fourier transform is used to extract the dc current at rectifier end of the dc transmission line and the processed current is compared with the threshold value to identify the fault. The factors considering the effect of fault location and fault resistance are considered for the accuracy, reliability and selectivity.



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