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Circuits and Systems, 1996., IEEE 39th Midwest symposium on

Date 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
  • A new hardware algorithm for computing object centers

    Publication Year: 1996, Page(s):1272 - 1275 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    A new hardware algorithm for computing object centers has been developed. This algorithm is simple and fast, and it is easy to implement with software or hardware. A VLSI hardware implementation is presented and a VLSI chip of this algorithm has been fabricated. The test results show that the circuit can determine the center of an object within less than 200 ns for 32-bit inputs View full abstract»

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  • Minimum-order fuzzy relation of a closed-loop system

    Publication Year: 1996, Page(s):983 - 986 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    Using the fuzzy relational matrix model of a process and the fuzzy relational matrix of a controller, a new method for obtaining the fuzzy relational matrix of a closed-loop system with an external input is given. The presented method has the advantage that it produces a closed-loop system minimum-order fuzzy relation matrix. The included example shows that the method is easy to apply 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 (7)  |  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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  • Accuracy of residual phase noise characterization of active RF/microwave devices

    Publication Year: 1996, Page(s):1371 - 1374 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Phase noise is widely recognized as a crucial parameter in many classes of microwave communication systems. Phase noise can deteriorate the signal-to-noise ratio and can cause severe problems in data fidelity in receiving systems. A precise measurement of phase noise characteristics is significant in the development of system architecture and component selection. The measurement accuracy of phase ... 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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  • 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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  • Self-learning neurofuzzy controller

    Publication Year: 1996, Page(s):987 - 990 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    A self-learning fuzzy logic system is given for control of unknown multiple-input-multiple-output (MIMO) plants. A concise formulation of fuzzy controllers for MIMO plants is presented. Through new terminology and data types, relations among the crisp input vector, the fuzzy basis set for all linguistic input variables, the cardinality vector of fuzzy partitions in all input universes of discourse... View full abstract»

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  • The use of adaptive fault tolerance in general classes of linear systems

    Publication Year: 1996, Page(s):1135 - 1138 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    Several recent publications have developed the concept of adaptive fault tolerance (AFT) by demonstrating how adaptive filter architectures and adaptive algorithms can be designed to continue operating effectively in the presence of certain classes of hardware failures. Previous studies limited the use of AFT to one-dimensional FIR filter structures. This paper further develops the concept of AFT ... View full abstract»

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  • New techniques for reflector network design in single-ended HEMT RF/microwave frequency multipliers

    Publication Year: 1996, Page(s):1359 - 1362 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Microwave and RF frequency multipliers have a wide range of uses in the electronic arena. It has been demonstrated that incorporating reflector networks into the design process can improve the performance of multipliers. This paper presents the development of alternative designs for reflector networks used in the designing of HEMT frequency multipliers. Conversion gains of 6.5 dB for narrowband de... 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 (7)
    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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  • Low power consumption voltage controlled oscillator design

    Publication Year: 1996, Page(s):1375 - 1378 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Voltage Controlled Oscillators (VCOs) are extremely important components in the exploding field of wireless radio-frequency communications. This paper illustrates the design and fabrication of a unique compact and low power consumption VCO for wireless communication. Subsequent to a description of the design technique, the paper discusses the measured results of a VCO, realized with the design pro... View full abstract»

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  • System modeling using a second-order Volterra delay filter

    Publication Year: 1996, Page(s):1276 - 1279 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    In this paper, we extend the linear delay filter, which is a technique for modeling sparse FIR systems, to a second-order Volterra delay filter to include the linear and quadratic filter coefficients for system modeling and identification. According to the error surface analysis, we propose two algorithms which are specially effective in modeling second-order Volterra systems with sparse system co... 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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  • A compact cell design for a multiport register file

    Publication Year: 1996, Page(s):1231 - 1234 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Intended for generated layout in embedded designs, an 11-transistor design gives one write port and three read ports. Single-sided writing and reading are done by overpowering weak feedback in the memory flip-flop's and output data latches. Transistors are scaled and layout developed to form 64-word by 16-column blocks in 0.8 μm CMOS. The four-fold decoder and I/O requirements are partially int... View full abstract»

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  • Fuzzy saturating control of a ball and beam system

    Publication Year: 1996, Page(s):991 - 994 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    In this paper, a connection between fuzzy controllers and variable structures controllers is developed. With this connection, a proof of their stability is presented. Further, methods to simplify fuzzy controllers as well as apply them to situations where fuzzy controllers previously failed are developed View full abstract»

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  • MAPS: a new and efficient block-matching criterion for motion estimation

    Publication Year: 1996, Page(s):1393 - 1396 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    In this paper, a novel and efficient block-matching criterion called mean absolute error of projective sum (MAPS) is proposed to significantly reduce the computational complexity of block-based motion estimation. It can save about 78% computational load in comparison with that of the conventional mean absolute difference (MAD). Simulation results show that its prediction quality is close to the MA... View full abstract»

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  • Efficient algorithm for fast computation of Zernike moments

    Publication Year: 1996, Page(s):1401 - 1404 vol.3
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Zernike moments have been used as shape descriptors in several object recognition applications. The classical method of computing Zernike moments is dependent on the regular moments which makes them computationally expensive and inefficient. In this paper, we present an efficient and fast algorithm for the direct computation of Zernike moments. This algorithm is based on using some properties of Z... View full abstract»

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  • Conditions for stability of two-port networks with feedback

    Publication Year: 1996, Page(s):1071 - 1074 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Cascaded amplifiers pose a difficult problem with respect to stability calculations, especially in MMIC design. The common power supply can be a source of feedback between, rendering the initial stability calculations for each stage inaccurate. A new method to analytically determine the exact amount of allowable feedback before a circuit becomes potentially unstable is presented 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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  • An FFT processor based on the SIC architecture with asynchronous PE

    Publication Year: 1996, Page(s):1313 - 1316 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    A SIC architecture with asynchronous bit-serial PEs is presented and applied to the Sande-Tukey's FFT. The resulting architecture can easily be modified for higher throughput and/or lower power consumption. Using this architecture a high-performance chip for use in an OFDM transmission system has been designed 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
    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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  • Asymptotic error bounds for block floating point digital filters

    Publication Year: 1996, Page(s):1405 - 1408 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    This paper analyzes the register length requirements for block-floating point digital filters. Both, shift and delta operator systems are considered. In particular the block mantissa length requirements are investigated, if the asymptotic response of the filter is to converge to underflow or to be bounded. Examples which illustrate the conservatism of the result are also provided View full abstract»

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  • Unified nodal analysis of electronic circuits

    Publication Year: 1996, Page(s):1119 - 1122 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    A circuit simulator has been developed on basis of Unified Nodal Analysis (UNA). It outperforms simulators with Modified Nodal Approach and Tableau formulation in that the initial-state and steady-state responses are generated from the UNA equations without transient analysis and transient simulations can be carried out from the UNA equations even for circuits with capacitor loops and inductor cut... View full abstract»

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