# IEEE Transactions on Circuits and Systems I: Regular Papers

## Filter Results

Displaying Results 1 - 25 of 25

Publication Year: 2009, Page(s):C1 - C4
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• ### IEEE Transactions on Circuits and Systems&mdash;I: Regular Papers publication information

Publication Year: 2009, Page(s): C2
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• ### A 750-MHz 6-b Adaptive Floating-Gate Quantizer in 0.35-μm CMOS

Publication Year: 2009, Page(s):1301 - 1312
Cited by:  Papers (9)
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A 6-b 750-MS/s flash analog-to-digital converter (ADC) uses nonvolatile analog storage for reference levels and achieves a signal-to-noise-plus-distortion ratio (SNDR) and a spurious-free dynamic range of 37.2 and 48.6 dB, respectively. The architecture comprises an array of adaptive floating-gate comparators that enables storage and programming of reference levels, eliminating the need for resist... View full abstract»

• ### Simplifying the Design of ΣΔModulators Using FGMOS Transistors

Publication Year: 2009, Page(s):1313 - 1325
Cited by:  Papers (4)
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This paper presents the novel design of a second-order continuous-time low-power and low-voltage SigmaDelta modulator. The modulator illustrates a design philosophy based on taking advantage of the extended number of degrees of freedom of the floating-gate MOS transistor. The transistor is simultaneously used to fulfill the following: simplify the topology; accurately implement the modulator coeff... View full abstract»

• ### Low-Cost Digital Detection of Parametric Faults in Cascaded$\Sigma\Delta$Modulators

Publication Year: 2009, Page(s):1326 - 1338
Cited by:  Papers (15)
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The test of SigmaDelta modulators is cumbersome due to the high performance that they reach. Moreover, technology scaling trends raise serious doubts on the intradie repeatability of devices. An increase of variability will lead to an increase in parametric faults that are difficult to detect. In this paper, a design-oriented testing approach is proposed to perform a simple and low-cost detection ... View full abstract»

• ### Current-Mirror-Based Potentiostats for Three-Electrode Amperometric Electrochemical Sensors

Publication Year: 2009, Page(s):1339 - 1348
Cited by:  Papers (84)  |  Patents (2)
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We present a new circuit topology for potentiostats that interface with three-electrode amperometric electrochemical sensors. In this new topology, a current-copying circuit, e.g., a current mirror, is placed in the sensor current path to generate a mirrored image of the sensor current. The mirrored image is then measured and processed instead of the sensor current itself. The new potentiostat top... View full abstract»

• ### A Low-Voltage Micropower Asynchronous Multiplier With Shift–Add Multiplication Approach

Publication Year: 2009, Page(s):1349 - 1359
Cited by:  Papers (8)
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The design of a low-voltage micropower asynchronous (async) signed truncated multiplier based on a shift-add structure for power-critical applications such as the low-clock-rate (<4 MHz) hearing aids is described. The emphases of the design are micropower operation and small IC area, and these attributes are achieved in several ways. First, a maximum of three signed power-of-two terms accompani... View full abstract»

• ### Space–Time-Coded MIMO ZP-OFDM Systems: Semiblind Channel Estimation and Equalization

Publication Year: 2009, Page(s):1360 - 1372
Cited by:  Papers (16)
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The space-time-block-code (STBC) multiple-input-multiple-output (MIMO) zero-padding orthogonal frequency-division multiplexing (ZP-OFDM) has been widely investigated in recent years. It provides a good performance for the multiuser scenario with a small number of pilots. However, it would fail in the face of complex symmetric signals. In this paper, novel channel estimation and equalization for co... View full abstract»

• ### Oscillator Phase Noise: A Geometrical Approach

Publication Year: 2009, Page(s):1373 - 1382
Cited by:  Papers (20)
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We construct a coordinate-independent description of oscillator linear response through a decomposition scheme derived independently of any Floquet theoretic results. Trading matrix algebra for a simpler graphical methodology, the text will present the reader with an opportunity to gain an intuitive understanding of the well-known phase noise macromodel. The topics discussed in this paper include ... View full abstract»

• ### Performance Analysis of a Hybrid Incremental and Cyclic A/D Conversion Principle

Publication Year: 2009, Page(s):1383 - 1390
Cited by:  Papers (9)
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This paper presents a new hybrid A/D conversion principle based on the combination of an incremental conversion for the most significant part of the result and on a cyclic conversion for the least significant part. The proposed approach exhibits a resolution comparable to a multiorder sigma-delta A/D converter (ADC), but with a higher conversion rate (typically a factor of two) and/or a lower comp... View full abstract»

• ### Fault-Tolerant Master–Slave Synchronization for Lur'e Systems Using Time-Delay Feedback Control

Publication Year: 2009, Page(s):1391 - 1404
Cited by:  Papers (38)
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This paper deals with fault-tolerant master-slave synchronization for Lur'e systems using time-delay feedback control. Taking a general nature of fault in the master system into account, a new synchronization scheme, namely, fault-tolerant master-slave synchronization, is proposed, by which the master-slave synchronization can be achieved no matter if the fault occurs or not. By making use of an o... View full abstract»

• ### From Zhang Neural Network to Newton Iteration for Matrix Inversion

Publication Year: 2009, Page(s):1405 - 1415
Cited by:  Papers (96)
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Different from gradient-based neural networks, a special kind of recurrent neural network (RNN) has recently been proposed by Zhang for online matrix inversion. Such an RNN is designed based on a matrix-valued error function instead of a scalar-valued error function. In addition, it was depicted in an implicit dynamics instead of an explicit dynamics. In this paper, we develop and investigate a di... View full abstract»

• ### Constrained PI Tracking Control for Output Probability Distributions Based on Two-Step Neural Networks

Publication Year: 2009, Page(s):1416 - 1426
Cited by:  Papers (28)
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In this paper, a new method for the control of the shape of the conditional output probability density function (pdf) for general nonlinear dynamic stochastic systems is presented using two-step neural networks (NNs). Following the square-root B-spline NN approximation to the measured output pdf, the problem is transferred into the tracking of dynamic weights. Different from the previous related w... View full abstract»

• ### Slope Interconnect Effort: Gate-Interconnect Interdependent Delay Modeling for Early CMOS Circuit Simulation

Publication Year: 2009, Page(s):1428 - 1441
Cited by:  Papers (10)
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We propose an analytical closed-form gate-interconnect interdependent delay model that accounts for the dynamic behavior of signal slope across different regions of operation. In the presence of interconnects, the gate driver influences the input slope of the driven wire affecting the interconnect delay, and the driven wire acts as a parasitic load to the driver affecting the gate delay. Hence, it... View full abstract»

• ### Robust$H_{2} /H_{\infty}$Global Linearization Filter Design for Nonlinear Stochastic Systems

Publication Year: 2009, Page(s):1441 - 1454
Cited by:  Papers (42)
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This paper proposes a robust global linearization filter design for a nonlinear stochastic system with exogenous disturbance. The nonlinear dynamic system is modeled by Itocirc-type stochastic differential equations. For a general nonlinear stochastic system with exogenous disturbance, the robustHinfinfilter can be obtained by solving a second-order nonlinear Hamilton-Jacobi ineq... View full abstract»

• ### Highly Efficient Monolithic Class E SiGe Power Amplifier Design at 900 and 2400 MHz

Publication Year: 2009, Page(s):1455 - 1466
Cited by:  Papers (19)
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This paper discusses the impact of transistor performance and operating frequency on the design of monolithic highly efficient RF SiGe power amplifiers (PAs) using on-chip lump-element passives and/or bondwires to approximate the class E switching conditions. Single-stage SiGe PAs were designed and fabricated using both high-breakdown and high- fT devices targeting for the highest power-added-effi... View full abstract»

• ### System and Circuit Design for an MB-OFDM UWB Frequency Synthesizer

Publication Year: 2009, Page(s):1467 - 1477
Cited by:  Papers (3)  |  Patents (1)
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This paper presents a complete top-down design and experimental results for a fast-hopping 11-band 3-10-GHz frequency synthesizer. The system requirements for a synthesizer in an ultrawideband (UWB) radio are discussed. The synthesizer specifications for 480-Mb/s- and 1-Gb/s-data-rate multiband orthogonal-frequency-division-multiplexing UWB radios using quadrature phase shift keying and 16-quadrat... View full abstract»

• ### Parallel Continuous-Time$\Delta\Sigma$ADC for OFDM UWB Receivers

Publication Year: 2009, Page(s):1478 - 1487
Cited by:  Papers (10)
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A parallel multibit continuous-time (CT) DeltaSigma analog-to-digital converter for an orthogonal-frequency-division-multiplexing (OFDM) ultrawideband receiver intended to operate according to the IEEE 802.15.3a or the ECMA 368 (ISO/IEC 26907) standards has been designed. The overall CT DeltaSigma converter consists of two modulators covering two unequal subbands (low-pass (LP) and bandpass (BP) s... View full abstract»

• ### A 240-MHz Low-Pass Filter With Variable Gain in 65-nm CMOS for a UWB Radio Receiver

Publication Year: 2009, Page(s):1488 - 1499
Cited by:  Papers (23)  |  Patents (1)
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An integrated fifth-order continuous-time low-pass filter for a WiMedia ultrawideband radio receiver is described in this paper. The prototype filter is realized with a passive pole at the filter input and a fourth-order leapfrog filter in which the gm-C technique with pseudodifferential transconductors is used. The transconductors do not include internal nodes, and they are designed to have a nom... View full abstract»

• ### Super-Regenerative Architecture for UWB Pulse Detection: From Theory to RF Front-End Design

Publication Year: 2009, Page(s):1500 - 1512
Cited by:  Papers (30)
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This paper presents an optimization of the super-regenerative architecture for impulse-based ultrawideband (UWB) technology dedicated to low-data-rate applications. The receiver belongs to the noncoherent category but enables nanosecond resolution for efficient location and tracking applications. Relying on analytical developments, this paper demonstrates how the super-regenerative architecture ca... View full abstract»

Publication Year: 2009, Page(s):1513 - 1524
Cited by:  Papers (6)
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A new architecture is presented for a sinc<sup>2</sup>(f) filter intended to sample channels of varying bandwidth when surrounded by blockers and adjacent bands. The sample rate is programmable from 5 to 40 MHz, and aliases are suppressed by 45 dB or more. The noise and linearity performance of the filter is analyzed, and the effects of various imperfections such as transconductor fini... View full abstract»

• ### A Carrier-Independent Non-Data-Aided Real-Time SNR Estimator for M-PSK and D-MPSK Suitable for FPGAs and ASICs

Publication Year: 2009, Page(s):1525 - 1538
Cited by:  Papers (8)  |  Patents (2)
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We present a channel signal-to-noise ratio (SNR) estimator for <i>M</i>-ary phase shift keying (M-PSK) and differential M-PSK. The estimator is non data aided and is shown to have the following advantages: 1) It does not require prior carrier synchronization; 2) the estimator has a compact fixed-point hardware implementation suitable for field-programmable gate arrays and application-s... View full abstract»

• ### 2010 IEEE International Symposium on Circuits and Systems (ISCAS2010)

Publication Year: 2009, Page(s): 1539
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• ### IEEE Transactions on Circuits and Systems&mdash;I: Regular Papers Information for authors

Publication Year: 2009, Page(s): 1540
| PDF (41 KB)
• ### IEEE Circuits and Systems Society Information

Publication Year: 2009, Page(s): C3
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## Aims & Scope

The theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Andreas Demosthenous
Dept. Electronic & Electrical Engineering
University College London
London WC1E 7JE, UK