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Electronic Technology Directions to the Year 2000, 1995. Proceedings.

Date 23-25 May 1995

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Displaying Results 1 - 25 of 42
  • Proceedings Electronic Technology Directions to the Year 2000

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (26 KB)
    Freely Available from IEEE
  • Circuit representation in a logic grammar

    Publication Year: 1995, Page(s):28 - 34
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    We have developed a new framework to represent circuit structures. A circuit is viewed as a sentence, and its elements as words. Circuit structures are defined by a logic grammar called DCSG (definite clause set grammars), developed for analyzing free word-order language. A set of grammar rules itself forms a logic program which implements top-down parsing. Using the grammar rules, given circuits ... View full abstract»

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  • A 32-bit GaAs IEEE floating point multiplier using Trailing-1's rounding algorithm

    Publication Year: 1995, Page(s):246 - 252
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    The paper presents a GaAs 32-bit IEEE floating point multiplier. A modified carry save array is used in conjunction with Booth's algorithm to reduce the partial product addition and interconnection. A special rounding technique called Trailing-1's Predictor is used to speed up the final addition and rounding. This chip uses a new layout methodology for easy design structure and improved GaAs techn... View full abstract»

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  • Introduction to artificial neural networks

    Publication Year: 1995, Page(s):36 - 62
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1100 KB)

    A general introduction to the subject of artificial neural networks is given and the tenuous relationship of neural networks to the biological neuron structure of the brain is also briefly outlined. The development of artificial neural networks has been marked by periods of considerable optimism and others of disillusionment. A realistic assessment of the potential of artificial neural networks is... View full abstract»

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  • Efficient decomposition of assigned sequential machines and Boolean functions for PLD implementations

    Publication Year: 1995, Page(s):258 - 266
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Programmable devices impose hard constraints on the size of circuits that can be implemented with them or with their blocks. Therefore, decompositional implementation of large functions is not a choice but a real necessity in this case. The objective of the new decomposition method presented is to implement a complex Boolean function or an assigned sequential machine with a minimal number of const... View full abstract»

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  • Neural network applications

    Publication Year: 1995, Page(s):63 - 67
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Artificial neural networks, also called neural networks, have been used successfully in many fields including engineering, science and business. This paper presents the implementation of several neural network simulators and their applications in character recognition and other engineering areas View full abstract»

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  • Efficient architectures for operators

    Publication Year: 1995, Page(s):267 - 275
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    The paper discusses the possibility of high performance computing for restricted classes of algorithms. An analysis of signal processing algorithms has identified a number of common operators which can be implemented efficiently with VLSI technology. The integration of these operators into conventional workstation environments provides the potential for orders of magnitude performance improvements... View full abstract»

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  • General fuzzy clustering model and neural networks

    Publication Year: 1995, Page(s):104 - 112
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    This paper defines a generalized structural model of similarity between a pair of objects. We have discussed an additive fuzzy clustering model previously. The merits of the additive fuzzy clustering models are (1) the amount of computations for the identification of the models are much fewer than in a hard clustering model and (2) we obtain a suitable fitness by using fewer number of clusters. Th... View full abstract»

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  • Autonomous road vehicle navigation

    Publication Year: 1995, Page(s):68 - 71
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The US Army Missile Command is conducting a program to develop and demonstrate a simple, low cost machine vision system capable of allowing an unmanned ground vehicle to perform autonomous road following and obstacle avoidance while using a minimum sensor suite. Current work is focused on developing this vision system to perform its function using color and monochrome TV imagery. The first phase o... View full abstract»

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  • Development of a spectrally efficient, high speed modem for microwave terrestrial and satellite communications

    Publication Year: 1995, Page(s):211 - 216
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The widespread demand for use of the limited radio spectrum lends to the design of high-speed modems which are spectrally efficient. This paper discusses the current work being undertaken on a DSP based modem supporting data rates ranging from 2 Mbit/sec up to 20 Mbit/sec View full abstract»

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  • All-aspect ship recognition in infrared images

    Publication Year: 1995, Page(s):194 - 198
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The paper describes an investigation of the problem of identifying objects, in particular ships at sea, in infrared images obtained at a variety of angles and scales. The paper covers theoretical and experimental work relating to the choice of feature vectors to describe the images and the application of the this work to the development of a demonstration system View full abstract»

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  • The use of entropy to focus inverse synthetic aperture radar (ISAR) images

    Publication Year: 1995, Page(s):163 - 168
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Inverse synthetic aperture radar (ISAR) images generated of targets which have a large angle of rotation or non-linear rotational motion are blurred if the rotational motion is not taken into account. If the rotational motion is known, the data can be corrected by resampling from the polar grid on which the data is collected, to a rectangular grid. A focused ISAR image can be then formed by using ... View full abstract»

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  • Adaptive process control using biologic paradigms

    Publication Year: 1995, Page(s):128 - 136
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    Researchers at the US Bureau of Mines have combined several biologically oriented techniques into a comprehensive approach to adaptive process control. The three specific techniques from the field of artificial intelligence used to produce the adaptive process control systems are: (1) fuzzy logic, (2) genetic algorithms, and (3) neural networks. Fuzzy logic is a technique in which the human &ldquo... View full abstract»

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  • Control instrumentation-a survey of current practice and some future trends

    Publication Year: 1995, Page(s):278 - 293
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (976 KB)

    The technological advances that have taken place in microelectronics, telecommunication and computer technologies have revolutionised the instrumentation used for measurement and control in today's industries. These applications being largely nonelectrical in nature, the impact has been even more tremendous. Mechanical and chemical engineers have suddenly to grapple with advanced electronic techno... View full abstract»

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  • Eclectic radar signal processing via artificial intelligence

    Publication Year: 1995, Page(s):85 - 92
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    This paper examines the evolution of HF radar signal processing in terms of the ever-increasing range of signal decomposition options, both algorithmic and paradigmatic. A processing regime embodying a knowledge-based system is proposed as a means of effecting real-time selection and control of signal analysis procedures View full abstract»

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  • A comparative study of artificial intelligent techniques in the detection of coronary artery disease

    Publication Year: 1995, Page(s):113 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    This paper presents a comparative study of expert system, fuzzy logic and neural networks in the detection of coronary artery disease. It is evident from this study that expert systems can be useful in training and providing expert assistance to the user. Fuzzy logic simplifies the knowledge base in the system. Neural networks are faster and have generalisation capability View full abstract»

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  • Non-linear adaptive techniques for DOA estimation-a comparative analysis

    Publication Year: 1995, Page(s):72 - 77
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    Linear model based beamforming techniques (e.g. MUSIC, MLM, MVDR, etc.) have been widely used for direction-of-arrival (DOA) estimation which, in terms of statistics, only make use of the first and second order moment information (e.g. the mean and the variance) of the data. In these techniques, the higher order statistics (3rd and 4th order “cumulants”) that provide the information re... View full abstract»

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  • SAR systems resolution reviewed for target classification in knowledge-based environment

    Publication Year: 1995, Page(s):177 - 183
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The knowledge based approach to synthetic aperture radar systems which is presented, considers how to utilise given equipment to perform the classification function, rather than providing an image of photographic like resolution for the purpose. The paper shows that dithering multiple carrier centre frequencies results in optimum use of the SAR waveform. Enhanced slant range resolution is achieved... View full abstract»

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  • Moving object area identification using the Radon transform in image sequences

    Publication Year: 1995, Page(s):199 - 204
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    A new moving object area identification method is described in this article. The Radon transform is used to take projections along parallel directions from two consecutive frames in a monocular image sequence while the camera is stationary. The method consists of two stages: motion detection; and identification of moving object areas in rectangular regions. Moving object area identification using ... View full abstract»

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  • Image computing for visual information systems

    Publication Year: 1995, Page(s):6 - 10
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The last few years have seen a remarkable growth of information in digital form due to a combination of several technological factors that include the availability of high speed electronic networks and affordable yet powerful desktop computing. This coupled with advances in scientific and consumer imaging technology-digital radiography, digital still cameras, desktop scanners, video capture boards... View full abstract»

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  • Diagnosing electrical and electronic systems in an intelligent environment

    Publication Year: 1995, Page(s):217 - 225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    There is a growing interest in intelligent tools in the area of fault detection and diagnosis in electrical and electronic systems. This paper reports the progress made in the development of a methodology for the diagnosis of electrical machines, with some encouraging initial results. An induction motor was chosen as an application of the knowledge based approach to fault diagnosis View full abstract»

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  • Optically powered isolated sensors

    Publication Year: 1995, Page(s):301 - 305
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The design and performance of an optically powered and isolated sensor system for inaccessible locations is described. Target applications involve sensing in hostile environments such as those experienced in high voltage power systems. A micropowered conventional transducer, serial 12-bit ADC, and LED transmitter are powered by a small photocell array that converts light from an optical fibre into... View full abstract»

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  • Evaluation of classification performance for randomly dithered carrier centre frequency in SAR systems

    Publication Year: 1995, Page(s):169 - 176
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    It has been shown that dithering between carrier centre frequencies results in enhanced slant range resolution, whilst maintaining the same analog to digital converter bandwidth and data storage size. There is a corresponding degradation in the image sidelobe levels. Simulations using a simple classifier are presented to determine the effect on classification performance of resolution and of side-... View full abstract»

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  • Integrating evolutionary computation with neural networks

    Publication Year: 1995, Page(s):137 - 143
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    There is a tremendous interest in the development of the evolutionary computation techniques as they are well suited to deal with optimization of functions containing a large number of variables. This paper presents a brief review of evolutionary computing techniques. It also discusses briefly the hybridization of evolutionary computation and neural networks and presents a solution of a classical ... View full abstract»

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  • Microcontroller based precision variable-phase phase-shifter

    Publication Year: 1995, Page(s):306 - 312
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    An analog and digital feedback compensation technique employing an active RC all pass filter is described for obtaining a frequency and amplitude independent, drift free phase shift for sinusoidal signals. While the analog feedback for realising the active R is of conventional type, the digital feedback for controlling C is implemented with a modified successive approximation (SA) technique. The i... View full abstract»

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