Results 1 to 10 of about 70 (64)
Understanding turbo codes: A signal processing study
Journal of Information and IntelligenceIn this paper, we study turbo codes from the digital signal processing point of view by defining turbo codes over the complex field. It is known that iterative decoding and interleaving between concatenated parallel codes are two key elements that make turbo codes perform significantly better than the conventional error control codes.
Xiang-Gen Xia
exaly +4 more sources
Exploring Parallel Processing Levels for Convolutional Turbo Decoding [PDF]
2006 2nd International Conference on Information & Communication Technologies, 2006 In forward error correction, convolutional turbo codes were introduced to increase error correction capability approaching the Shannon bound. Decoding of these codes, however, is an iterative process requiring high computation rate and latency. Thus, in order to achieve high throughput and to reduce latency, crucial in emerging digital communication ...
Muller, Olivier +2 more
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The k-Nearest Neighbour Join: Turbo Charging the KDD Process [PDF]
Knowledge and Information Systems, 2004 The similarity join has become an important database primitive for supporting similarity searches and data mining. A similarity join combines two sets of complex objects such that the result contains all pairs of similar objects. Two types of the similarity join are well-known, the distance range join, in which the user defines a distance threshold for
Christian Böhm 0001, Florian Krebs
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MICELAB: Spatial processing of mouse movement in Turbo Pascal [PDF]
Behavior Research Methods, Instruments, & Computers, 1995 Pointing tasks with a mouse are very useful in psychological experiments concerned with a subject’s ability to track a visual object or to move to a target location (e.g., to find a word in text). Such tasks are quite easily performed by subjects, and numerous variables may be obtained from the mouse movement. In this article we describe a set of Turbo
Thierry Baccino, Alan Kennedy
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Illuminating the Mechanism of Iterative Turbo Code Decoding Process [PDF]
International Conference on Aerospace Sciences and Aviation Technology, 2007 The most exciting and potentially important development in coding theory in recent years has been the dramatic announcement of “Turbo codes”. Turbo codes are constructed by applying two or more component codes to different interleaved versions of the same information sequence.
Moataz Salah +2 more
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Graph-driven interactive processes in turbo-component preliminary design [PDF]
Proceedings of Global Power & Propulsion SocietyThe objective of this work is to introduce an interactive design process for turbo machinery components, utilizing a graph-based framework. This approach integrates various methodologies, typically involved in the preliminary design phase, into a cohesive structure.
Schmeink, Jens +3 more
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Analysis of the Convergence Process by EXIT Charts for Parallel Implementations of Turbo Decoders [PDF]
IEEE Communications Letters, 2013 Iterative process is a general principle in decoding powerful FEC codes such as turbo codes. However, the mutual information exchange during the iterative process is not easy to analyze and to describe. A useful technique to help the designer is the EXtrinsic Information Transfer (EXIT) chart.
Sanchez, O. +2 more
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Array processing for simplified turbo decoding of interleaved space-time codes [PDF]
IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002 Space-time coded architectures that deploy multiple transmit-receive antennas with interleaved space-time codes are considered. Decoding is based on the iterative concatenation of a demapping stage with a decoding stage. We describe several simplified demapping algorithms based on array processing methods that can include either soft or hard feedback ...
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Automatic Visual Inspection of Turbo Vanes produced by Investment Casting Process
2020 3rd International Conference on Sensors, Signal and Image Processing, 2020 Visual inspection based systems are important tools to ensure the quality of manufactured parts in industry. This work presents an automatic visual inspection approach for defect detection in turbo vanes in the investment casting industry. The proposed method uses RANSAC for robust line and circle detection to extract relevant information to ...
Valter Costa +5 more
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Subblock Processing for Frequency-Domain Turbo Equalization under Fast Fading Environments [PDF]
IEICE Transactions on Communications, 2008 Frequency-domain equalization (FDE) has been studied for suppressing inter-symbol interference (ISI) due to frequency selective fading in single carrier systems. When a high-mobility terminal is assumed in the system, channel transition within an FDE block cannot be ignored.
Keiichi Kambara +4 more
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