This paper describes the architecture and development of an innovative memory controller for the PowerPC family. HiBRIC-MEM (High Bandwidth Resource Interface Controller) provides control for up to two PowerPC process...
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This paper describes the architecture and development of an innovative memory controller for the PowerPC family. HiBRIC-MEM (High Bandwidth Resource Interface Controller) provides control for up to two PowerPC processors. A look-ahead mechanism, called stream cache, is used to reduce the effective memory latency and a 12-bit error correction code is available for optimal system security. Initial silicon was produced in a 0.7 /spl mu/m, three metal layer Motorola technology and has a die size of 12.1/spl times/12.1 mm/sup 2/. HiBRIC-MEM is used, for example, in a commercially available parallel computer.
A method for identification of mechanical systems is reported. The identification of mechanical systems is often done by neural networks used as black boxes in order to produce an inverse system model for control. Con...
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A method for identification of mechanical systems is reported. The identification of mechanical systems is often done by neural networks used as black boxes in order to produce an inverse system model for control. Contrary to this approach, we intend to identify the mechanical structure and parameters, which allows the use of conventional control theory. The basis of the identification system is a self-organizing feature map (SOFM) representing the systems to be identified. The systems are described by their response to test signals, which are used for feature extraction. The extracted features are analyzed with SOFMs to explore the feature space. The map is well suited for this kind of interpretation. As an application example, the identification of a two mass system is presented.
The local cluster (LC) artificial neural net is a special kind of multilayer perceptron where the sigmoid functions combine in clusters that have a localised response in input space. The proponents of the LC architect...
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The local cluster (LC) artificial neural net is a special kind of multilayer perceptron where the sigmoid functions combine in clusters that have a localised response in input space. The proponents of the LC architecture have shown that it is versatile and trains well. They also suggested that the LC nets could be suitable for realisation in analog VLSI. We investigated the feasibility of an analog realisation of LC nets by following through the complete cycle from design to fabrication. We found that the all the required mathematical functions call be realised in current mode bipolar and CMOS circuits. In this paper we discuss the main design issues paying special attention to the alternative training regimes for an LC chip.
th This volume is an edition of the papers selected from the 12 FIRA RoboWorld C- gress, held in Incheon, Korea, August 16–18, 2009. The Federation of International Robosoccer Association (FIRA – www. fira. net) is ...
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ISBN:
(数字)9783642039867
ISBN:
(纸本)9783642039850
th This volume is an edition of the papers selected from the 12 FIRA RoboWorld C- gress, held in Incheon, Korea, August 16–18, 2009. The Federation of International Robosoccer Association (FIRA – www. fira. net) is a non-profit organization, which organizes robotic competitions and meetings around the globe annually. The RoboSoccer competitions started in 1996 and FIRA was - tablished on June 5, 1997. The Robot Soccer competitions are aimed at promoting the spirit of science and technology to the younger generation. The congress is a forum in which to share ideas and future directions of technologies, and to enlarge the human networks in robotics area. The objectives of the FIRA Cup and Congress are to explore the technical dev- opment and achievement in the field of robotics, and provide participants with a robot festival including technical presentations, robot soccer competitions and exhibits - der the theme “Where Theory and Practice Meet. ” th Under the umbrella of the 12 FIRA RoboWorld Incheon Congress 2009, six int- national conferences were held for greater impact and scientific exchange: th • 6 International Conference on Computational Intelligence, Robotics and Autonomous systems (CIRAS) th • 5 International Symposium on Autonomous Minirobots for Research and Edutainment (AMiRE) • International Conference on Social Robotics (ICSR) • International Conference on Advanced Humanoid Robotics Research (ICAHRR) • International Conference on Entertainment Robotics (ICER) • International Robotics Education Forum (IREF) This volume consists of selected quality papers from the six conferences.
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