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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
  • Analysis of structural properties responsible for nonlinear modal behavior of a stressed power system using the normal form technique

    Publication Year: 1996, Page(s):1029 - 1033 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    In this paper a scanning program is developed based on the normal form technique to analyze the structural properties of a stressed power system. The mathematical model and procedure are presented. Numerical testing on a 17-generator system shows that in the stressed systems, more modes can be strongly excited and new modal resonance phenomenon may occur, which will cause severe nonlinear behavior... View full abstract»

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  • An improved steady-state method applying Broyden's technique to the shooting method [nonlinear circuits]

    Publication Year: 1996, Page(s):1023 - 1026 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    This paper presents a time-domain method which enables multi-level and mixed-domain steady state analysis. In some key applications such as power electronics and communications, the designer is typically interested in the steady state performance of the circuit. Currently, one of the popular methods for computing the forced periodic steady state of a nonlinear circuit is the shooting method. This ... View full abstract»

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  • Efficiency analysis of switched capacitor doubler

    Publication Year: 1996, Page(s):1019 - 1022 vol.3
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Switched capacitors doubler and triplers are used to step-up dc voltage. They are readily integrable which makes them a good choice for numerous applications. Their power conversion efficiency is limited due to switch drops, parasitic capacitances and resistances. However their efficiency is also inherently limited by the circuit topology. This paper provides an upper bound for the power conversio... View full abstract»

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  • Continuous-time optimization of gate timing for synchronous rectification

    Publication Year: 1996, Page(s):1015 - 1018 vol.3
    Cited by:  Papers (9)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Synchronous rectifiers, which use a controlled MOSFET in place of a standard p-n or Schottky rectifier, are an important technology for low-voltage power converters. Conventional control techniques for synchronous rectification are often very conservative, however, leaving room for improvement. This paper presents a method for monitoring current flow to adaptively optimize the relative timing of t... View full abstract»

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  • Optimal energy management for solar car race

    Publication Year: 1996, Page(s):1011 - 1014 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    This paper describes a solar car simulation and race strategy program developed for the University of Illinois Sunrayce 95 solar car race team. The goal is to complete the ten-day race course in the minimum total running time, using solar energy alone. In cloudy weather, even the most competitive cars can become energy-limited. The strategic choice in that case, is how fast to drive the car at any... View full abstract»

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  • Transmit pulse shaping filters and CORDIC algorithm based precompensation for digital satellite communications

    Publication Year: 1996, Page(s):1219 - 1222 vol.3
    Cited by:  Patents (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The design and architectural implementation of low complexity pulse shaping filters and algorithmic precompensation for satellite communications transmitters is presented. A lookup table (LUT) approach is used to implement the pulse shaping that provides good spectral efficiency with low implementation loss. A COordinate Rotation Digital Computer (CORDIC) algorithm technique is use to implement th... View full abstract»

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  • A miniaturized lumped-distributed balun for modern wireless communication systems

    Publication Year: 1996, Page(s):1347 - 1350 vol.3
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The reduction in size of RF signal processing components is an important part of the miniaturization and cost reduction of wireless communication systems. A balun is a crucial component in most wireless communication systems. In this paper we describe research aimed at reducing the size and manufacturing complexity of printed baluns. A design utilizing distributed microstrip coupled lines and lump... View full abstract»

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  • A cost-reliability model with spares in electric power systems

    Publication Year: 1996, Page(s):1057 - 1060 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    The three-phase electric power system can be considered as a triple system since it includes within its different sections three similar components of certain items. These items may be transformers, rectifiers, thyristors. protection equipment...etc. In order to achieve a certain reliability level for this system, it is also necessary to include spares in the system for each item and this will bri... View full abstract»

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  • Simple explicit and recursive formulas for the coefficients of FIR digital differentiators for midband frequencies

    Publication Year: 1996, Page(s):1413 - 1415 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    An efficient algorithm for calculating the coefficients of FIR digital differentiators for mid-band frequencies is presented. Simple closed-form explicit and recursive formulas are derived in a straightforward manner. Moreover, a simple recursive relation is obtained, relating the coefficients of two digital filters of adjacent ranks View full abstract»

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  • Analysis of harmonic termination impedance on RF/microwave multiplier efficiency

    Publication Year: 1996, Page(s):1343 - 1346 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    Harmonic terminating impedances have been shown to drastically effect the performance of RF/microwave frequency multipliers. In the literature, various apparently differing conclusions have been obtained on the proper terminating impedances for active multipliers to achieve optimum performance. This paper presents a rigorous and concise approach leading to the determination of harmonic terminating... View full abstract»

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  • A multivariable PI controller for nonlinear ill-conditioned electrical tubular ovens

    Publication Year: 1996, Page(s):1005 - 1008 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    The control of multivariable systems has been a wide area for investigation of new methods and techniques. One of the primary objectives of the control design problem is to overcome the usually existent cross-coupling between inputs and outputs which obscures the effects of a specific loop controller on the system behavior. In the case of temperature control, the problem is still more challenging ... View full abstract»

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  • Simulation of intermodulation generation in nonlinear transmission line

    Publication Year: 1996, Page(s):1185 - 1188 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    For the first time, the intermodulation generation in nonlinear transmission line is numerically simulated by using a frequency-domain numerical technique for nonlinear circuits, referred to as intermodulation-balance method View full abstract»

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  • GEEP: a low power genetic algorithm layout system

    Publication Year: 1996, Page(s):1337 - 1340 vol.3
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    In this paper we present GEEP, a genetic algorithm for low power standard-cell placement. GEEP reduces interconnect capacitance by an average of 20% over recursive min-cut area optimizing placement. It incorporates a number of heuristics to produce good placements fast relative to existing GAs, including a novel method for handling low population diversity. We tested GEEP on a suite of MCNC benchm... View full abstract»

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  • Efficient multicasting and broadcasting in interconnection networks

    Publication Year: 1996, Page(s):1162 - 1165 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Efficiency in broadcasting and multicasting in networks is a major issue. The traditional multicasting and broadcasting techniques do not extend well to wormhole networks and especially to a shared memory multiprocessor environment where the messages are short and need a very low communication overhead. We propose an efficient hardware algorithm for multicasting and broadcasting in a hypercube bas... 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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  • Applying cooperative learning to a graduate power systems analysis course: it works for me!

    Publication Year: 1996, Page(s):1089 - 1092 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    This paper gives anecdotal experience about the application of cooperative and active learning concepts in a graduate class in power systems analysis. The use of these techniques resulted in a significant improvement in student evaluations of the course (and the instructor) in comparison with two prior offerings, yet reduced instructional workload. Its possible that the students even learned more ... 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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  • Identification of nonlinear systems with evolving networks

    Publication Year: 1996, Page(s):1001 - 1004 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    This paper discusses and shows how computation intensive nonlinear identification problems can be computed efficiently using evolving networks and clusters of workstations. Simulations are conducted to study the performance of this approach with different nonlinear systems. Results of developing parallel algorithms for system identification are discussed View full abstract»

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  • Active networks and node addition

    Publication Year: 1996, Page(s):1115 - 1118 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    A new node addition theorem and three corollaries that can be applied directly to active networks are presented and proved. The purpose of this theorem and its corollaries is to allow direct modification of the elements of the nodal admittance matrix of a given active network to generate new analog circuits from existing circuitry. An example of the application of this theorem is provided View full abstract»

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  • On WDM-ATM network architectures

    Publication Year: 1996, Page(s):1212 - 1215 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The objective of the paper is to describe a hierarchical network architecture based on all-optical Wavelength Division Multiplexed (WDM) networks extended (for longer distances) through Asynchronous Transfer Mode (ATM) networks. The local subnetworks are designed as all-optical WDM networks that require tunable components and a media access protocol. These networks are designed to efficiently supp... 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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  • A state-space realization form of two-dimensional digital filters

    Publication Year: 1996, Page(s):1409 - 1412 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    In this paper, we propose a method for obtaining the state-space realization form of two-dimensional digital filters (2DDF). By using our method, realization form can be directly obtained from the coefficients of the transfer functions of 2DDF, without performing canonical decomposition of the state equations and solving nonlinear equations. We consider the possibility of reducing the realization ... View full abstract»

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  • Some theoretical results based on passivity for linear time-invariant digital filters

    Publication Year: 1996, Page(s):1416 - 1419 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    In this paper, a suitable definition of passivity is chosen for linear and time-invariant digital filters, which are described only by state-space equations without any knowledge of their structures. The rational transfer function or transfer matrix of such a passive digital filter is so-called unitary-bounded. In general, the converse of this statement is not true. However, any digital filter pos... View full abstract»

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