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Proceedings of the 39th Midwest Symposium on Circuits and Systems

21-21 Aug. 1996

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  • Proceedings Of The 39th Midwest Symposium On Circuits And Systems

    Publication Year: 1996, Page(s):iii - xxxv
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    Freely Available from IEEE
  • Conference Author Index

    Publication Year: 1996, Page(s): I
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    Freely Available from IEEE
  • Development and application of a power system simulation environment

    Publication Year: 1996, Page(s):1097 - 1100 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    This paper describes a user-friendly power simulation package for teaching power system operations and control. This Microsoft Windows(R) based program simulates power system operation over a specified time period (of typically several hours to a day). Students dynamically interact with the simulated system through various windows, including a one-line display. The use of data files and option win... View full abstract»

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  • Pricing distributed vs. centralized wind energy production

    Publication Year: 1996, Page(s):1053 - 1056 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Several studies in recent years have investigated the merits of distributed vs. centralized wind energy production. These studies have focused on the effect of each on the transmission system, the infrastructure, on the politics of wind energy, on economic development for the state, and so on. Few studies, however, have focused on the effect of distributing the production of wind energy on the var... View full abstract»

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  • Efficient microcontroller based portable heart monitoring system

    Publication Year: 1996, Page(s):1264 - 1267 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    A new microcontroller based inexpensive, portable, and easy to use heart monitoring system is presented in this paper. This device could be worn by a person while exercising or at any other time. During operation, this device monitors the EKG signals from the heart continuously. This instrument also has the capability to alert the user whenever an abnormal heart rhythm occurs storing the signal si... View full abstract»

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  • Error coding and loss cell recovery in asynchronous transfer mode

    Publication Year: 1996, Page(s):1223 - 1226 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    This paper addresses the research and development results of error coding methods in ATM applications. These results include new code implementation, parallel decoding processing, and novel code combination. Three codecs have been designed, developed, simulated and are preparing for hardware testing in field programmable gate array logics. For the single cell transmission, the cell header and the ... View full abstract»

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  • Low-power state assignment for asynchronous finite state machines

    Publication Year: 1996, Page(s):1325 - 1328 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    In this paper a precise model for calculating the steady state probabilities and state transition probabilities of asynchronous finite state machines (AFSMs) is presented. Based on this model and the derived weighted adjacency diagram, an efficient unicode race-free state assignment technique is proposed to minimize the average switching activity of state variables, thus to potentially reduce the ... View full abstract»

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  • Implementation of neural network and genetic algorithms for novelty filters for fault detection

    Publication Year: 1996, Page(s):1432 - 1435 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    In this paper a method of detecting shorted turns in rotating machines using computational intelligence techniques (neural network and genetic algorithm) is presented. The methods of signal processing and detection of faults in operating machines is discussed. The use of novelty filters for the detection of shorted turns and mechanical failures in operating machines is described. Genetic algorithm... View full abstract»

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  • Pricing the variance of wind energy

    Publication Year: 1996, Page(s):1049 - 1052 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    At present, the value of electricity produced by wind farms is often assumed proportional to the total energy produced. This is not an accurate model for determining the value of wind energy, however, since it neglects the cost to the utility associated with wind variability. In this paper, a model is proposed where the value of the wind energy produced includes terms related to the variance of th... View full abstract»

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  • The application of interchange theorems to linear current-mode active networks

    Publication Year: 1996, Page(s):1127 - 1130 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    In this paper, four interchange theorems are stated and proved for a more general network configuration than has been previously employed. The new network configuration is more general in that points of application of the (current) excitations are not limited. The generalized network contains multiple nullors, multiple outputs and multiple excitations. The number of excitations may be greater than... View full abstract»

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  • Low power pipelined FFT architecture for synthetic aperture radar signal processing

    Publication Year: 1996, Page(s):1367 - 1370 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    A new FFT architecture for SAR (Synthetic Aperture Radar) signal processing is presented. The proposed architecture adopts several new techniques for low power operation and high throughput. A storage element and Delay Locked Loop (DLL) are newly designed for a constant geometry radix-4 pipelined DIF FFT architecture. The storage element uses a ping-pong scheme with two 16 KB SRAMs, each having an... View full abstract»

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  • A thermodynamic approach to energy conversion in parametric transformers

    Publication Year: 1996, Page(s):1079 - 1082 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The aim of the paper is to present a thermodynamic approach to the theory of the energy conversion in inductive parametric devices. An inductive parametric converter, also named parametric transformer (PT), is a static electromagnetic device made by two nonlinear inductors having zero mutual inductance. The coupling of the constitutive equations, needed by the conversion process, is due to the non... View full abstract»

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  • Implicit evaluation of encoding rotations for large FSMs

    Publication Year: 1996, Page(s):1321 - 1324 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The problem of state assignment for finite state machines has been extensively studied by the synthesis community, targeting traditional criteria like area, performance, testability, or, more recently, power dissipation. State assignment algorithms targeting low power dissipation try to assign states so as to minimize the switching activity of the circuit, which is proportional, in CMOS circuits, ... View full abstract»

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  • Transmission/distribution load flow based on mesh approach

    Publication Year: 1996, Page(s):1042 - 1045 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    A load flow based on the first iteration of Newton's method and mesh analysis is proposed. Firstly, one neglects the links and then the systems' tree is solved avoiding matrix inversion. Afterwards, the links are included as radial branches in which the power must be computed in order to impose equivalence with the original system. A set of linear equations for updating the variables is obtained b... View full abstract»

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  • Rad-tolerant flight VLSI from commercial foundries

    Publication Year: 1996, Page(s):1227 - 1230 vol.3
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    This paper reviews techniques which have been used to protect CMOS circuits from the deleterious effects of the natural space radiation environment. Three custom flight VLSI processors have been designed and fabricated at commercial foundries. A program has been initiated to provide this radiation-tolerant VLSI technology to designers of Application Specific Integrated Circuits View full abstract»

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  • Burst-mode 16 QAM receiver for upstream transmission over CATV networks

    Publication Year: 1996, Page(s):1260 - 1263 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    This paper describes the characteristics and performance of a burst-mode 16 QAM receiver. Circuit implementations and control algorithms are presented with an emphasis on burst-mode phase acquisition, automatic gain control, and data decision. Measurement results show a typical receiving sensitivity of -60 dBm, a dynamic range of 22 dB and a run-in time of 2 μs View full abstract»

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  • ATM switching systems for broadband ISDN

    Publication Year: 1996, Page(s):1166 - 1169 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    ATM (Asynchronous Transfer Mode) is considered to be the most suitable for Broadband Integrated Service Digital Networks (B-ISDN), because of its time transparency and bandwidth flexibility. ATM switch constitutes a crucial component of broadband networks. The ATM switching differs considerably from the conventional switching techniques due to various reasons. The high-speed interface to the switc... View full abstract»

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  • Design of an integrated optical receiver for a phased array antenna

    Publication Year: 1996, Page(s):1363 - 1366 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    This paper describes the design of an InP HBT-based, long wavelength (1300 nm), optical receiver for use in optical signal distribution of microwave signals (6-13 GHz) for a phased array antenna. Discussed are the tradeoffs in selection and design of the photodetector, transistor and amplifier for monolithic integration View full abstract»

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  • Eigenvalues and the Linvill power plane stability

    Publication Year: 1996, Page(s):1075 - 1078 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    An analysis of the properties of an ellipse using linear algebra to define eigenvalues of general 2D systems is applied to determine the stability of a particular system, the Linvill power plane. This is an old but useful geometric approach to analyzing power flow, power gain, and stability in amplifier design View full abstract»

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  • Reduced-size low noise-low power consumption amplifier designs for communications and RF applications

    Publication Year: 1996, Page(s):1379 - 1382 vol.3
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Low-noise amplifiers are extremely significant components in most RF cellular and communications devices. While current design techniques achieve either low noise or high gain, exclusively, little research has been done to reduce their power consumption while simultaneously meeting both of the aforementioned objectives. This paper presents important techniques for the design and development of spa... View full abstract»

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  • Design formulae for a class of microstrip tee junction power-divider circuits

    Publication Year: 1996, Page(s):1351 - 1354 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    This paper presents a method for accurate design of a class of narrow band and broad band power-divider T junction circuits. This technique is based on the development of design formulae from theory and empirical data. Specifically, this technique makes it possible to design three T junction circuits, the asymmetrical tee (narrow band circuit), the 2-step tee and the linearly tapered tee (broad ba... View full abstract»

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  • A comparison of different spectral analysis models for speech recognition using neural networks

    Publication Year: 1996, Page(s):1428 - 1431 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    This work presents an application of Artificial Neural Networks (ANN) in Speech Recognition. The aim of this article is to compare the performance of a neural network-based recognition system when using different spectral analysis models. Different sets of coefficients, such as AutoCorrelation and MelCepstron, are extracted from the speech utterances. We have made experiments using separately, dif... View full abstract»

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  • New concepts of the power received by ideal energy storage elements: the instantaneous complex power approach

    Publication Year: 1996, Page(s):1038 - 1041 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    This paper presents some definitions and concepts of the Instantaneous Complex Power Theory which is a new approach for the Alcagi's Instantaneous Reactive Power Theory. The powers received by an ideal inductor are interpreted and the knowledge of the actual nature of these powers may lead to changes of the conventional electrical power concepts View full abstract»

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  • A fuzzy block replacement algorithm for disk caches

    Publication Year: 1996, Page(s):995 - 998 vol.3
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    In this paper, we present a new block replacement algorithm for disk caches. Our Fuzzy Block Replacement Algorithm (fuzzy block-RA) utilizes nine fuzzy rules to pick out the block to be evicted when an I/O reference causes a miss on a filled up disk cache. The decision making process is based on the age of a block and the frequency at which references are made to it. Optimization of the knowledge ... View full abstract»

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  • A virtual electromechanical simulator

    Publication Year: 1996, Page(s):1105 - 1108 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The purpose of this paper is to suggest the use of an interactive virtual electromechanical simulator in lieu of, or in conjunction with, an existing electric machine laboratory experience. Developed at the University of Arkansas, this software, possessing a friendly graphical user interface (GUI), is designed to be an effective pedagogical tool for the undergraduate and graduate curricula in the ... View full abstract»

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