Discrete Fourier Transform
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2012 International Conference on Digital Image Computing: Techniques and Applications (DICTA)
he International Conference on Digital Image Computing: Techniques and Applications (DICTA) is the main Australian Conference on computer vision, image processing, pattern recognition, and related areas. DICTA was established as a biannual conference in 1991 and became an annual event in 2007. It is the premiere conference of the Australian Pattern Recognition Society (APRS).
Signal-processing aspects of image processing, imaging systems, and image scanning, display, and printing. Includes theory, algorithms, and architectures for image coding, filtering, enhancement, restoration, segmentation, and motion estimation; image formation in tomography, radar, sonar, geophysics, astronomy, microscopy, and crystallography; image scanning, digital half-toning and display, andcolor reproduction.
The most highly-cited general interest journal in electrical engineering and computer science, the Proceedings is the best way to stay informed on an exemplary range of topics. This journal also holds the distinction of having the longest useful archival life of any EE or computer related journal in the world! Since 1913, the Proceedings of the IEEE has been the ...
Rapid dissemination of new results in signal processing world-wide.
The technology of transmission, recording, reproduction, processing, and measurement of speech; other audio-frequency waves and other signals by digital, electronic, electrical, acoustic, mechanical, and optical means; the components and systems to accomplish these and related aims; and the environmental, psychological, and physiological factors of thesetechnologies.
Hanna, M.T. Circuits and Systems (MWSCAS), 2012 IEEE 55th International Midwest Symposium on, 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, ...
Hori, T. Circuits and Systems I: Regular Papers, IEEE Transactions on, 2008
This paper discusses how to reduce the numbers of sampling points to obtain the 2-D discrete Fourier transform used in harmonic balance method. A method of embedding a 2-D Fourier transform into a 1-D one has already been proposed. This paper proposes a method of reducing the numbers of sampling points in a 1-D Fourier transform, by using bandpass sampling. ...
Wen Zhuo; Micheli-Tzanakou, E. Information Technology Applications in Biomedicine, 1998. ITAB 98. Proceedings. 1998 IEEE International Conference on, 1998
This paper presents a high performance frequency domain filter implementation for a moving window-type processing. The computational structure consists of three stages: a sliding discrete Fourier transform (SDFT) for a vectorized updating of the DFT; a frequency domain filter; and a one-point inverse discrete Fourier transform (IDFT). The total computation required for generating one filtered output point is 2×N multiplications ...
Akansu, A.N.; Agirman-Tosun, H. Sarnoff Symposium, 2009. SARNOFF '09. IEEE, 2009
Constant amplitude transforms like discrete Fourier transform (DFT), Walsh transform, nonlinear phase Walsh-like transforms and Gold codes have been successfully used in many wire-line and wireless communications technologies including code division multiple access (CDMA), discrete multi-tone (DMT), and orthogonal frequency division multiplexing (OFDM) types. In this paper, we present a generalized framework for DFT called generalized DFT (GDFT) with nonlinear ...
You, S.D. Communications, IET, 2014
An orthogonal frequency-division multiplexing (OFDM) system with non-uniformly spaced pilots, such as worldwide interoperability for microwave access, voids virtually all discrete Fourier transform (DFT)-based interpolation methods for channel estimation, because they all require pilots to be uniformly spaced. Therefore, we propose two iterative algorithms to solve this problem. In the proposed algorithms, the inverse discrete Fourier transform and DFT are ...
Behzad, Arya Wireless-LAN Radio Design, 2005
As one of the few rising stars of the semiconductor industry, WLAN design is engaging more and more engineers and companies. Essential to the overall system design, is the radio design. This tutorial will introduce the various flavors of the 802.11 WLAN PHY standards (A/B/G) and describe their specifications and impact on the radio design. The possible choices for the ...
O'Donnell, Robert Review of Signal Systems and Digital Signal Processing, 2012
The Radar Systems Engineering Series consists of seventeen lectures; each lecture is offered as an individual tutorial. The goal of this series is to provide an advanced introduction to radar systems subsystem issues for first year graduate students, advanced senior undergraduates or professionals new to the field. The material will be most accessible to university graduates with a Bachelor of ...
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