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On Capacity of Frequency Non-Selective Slowly Time-Varying Fatling Channel
1993 Edition, January 1, 1993 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We consider a frequency non-selective slowly time-varying Rayleigh fading code-division multiaccess (CDMA) additive white Gaussian noise (AWGN) channel. Assuming that the signature waveforms are time-limited to the symbol interval, we find the capacity region of the two-user...

A robust adaptive law for l/sup 1+/spl alpha// modeling errors
1999 Edition, Volume 44, January 1, 1999 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A new adaptive parameter update law is proposed for discrete-time model reference adaptive control to ensure robustness with respect to l/sup 1+/spl alpha// (1/spl les//spl alpha/and disturbances in...

A robust adaptive law for l/sup 1-/spl alpha// modeling errors
1997 Edition, Volume 5, January 1, 1997 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A new adaptive parameter update law is proposed for discrete-time model reference adaptive control to ensure robustness with respect to l/sup 1+/spl alpha// (1/spl les//spl alpha/and disturbances in...

Adaptive l/sup 1/-optimal control for SISO plant
1995 Edition, Volume 2, January 1, 1995 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

An adaptive minimax control problem is stated for a general SISO plant in which the disturbance is assumed to belong to a given convex set of sequences and arbitrary otherwise. Unlike the standard stochastic approach there is no identification procedure or...

On a stability theorem for nonlinear systems with slowly varying inputs
1990 Edition, Volume 35, July 1, 1990 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Recently, M. Kelemen (IEEE Trans. Automat. Contr., vol.AC-31, 766-768, Aug. 1986) presented a stability result that deals with the response of a nonlinear system to slowly varying input signals. In this work a proof is given, under a weaker hypothesis on the input...

A Kalman Smoothing Algorithm for Speech Enhancement Based on the Properties of Vocal Tract Varying Slowly
2007 Edition, Volume 3, July 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The linear prediction coefficients obtained from noisy speech have an important impact on improving the quality of the enhanced speech in the speech enhancement algorithm based on the Kalman Smoother. According to the properties of the slow changes of the vocal tract,...

On robust performance in H/sup /spl infin//
1994 Edition, Volume 2, January 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper we consider the robust performance problem in H/sup /spl infin// with scalar perturbations. We illustrate how the worst case H/sup /spl infin// performance can be regarded as an H/sup /spl infin// norm of a function of several complex...

On-line Bayesian Cramer-Rao Bounds for OFDM slowly varying rayleigh multi-path channel estimation
2008 Edition, October 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The on-line Bayesian Cramer-Rao (BCRB) lower bound for the dynamic estimation of a time-varying multi-path Rayleigh channel in 4-QAM OFDM system is considered. In case of negligible channel variation within one symbol and delay related information, true BCRB for...

An adaptive output feedback control for a class of nonlinear systems with time-varying parameters
1999 Edition, Volume 44, November 1, 1999 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We consider a class of observable, minimum phase single-input, single-output nonlinear systems evolving in R/sup n/ with relative degree /spl rho/ and p uncertain differentiable time varying parameters /spl theta/(t), belonging to a known compact set /spl...

An adaptive hybrid ARQ scheme based on exponentially weighted moving averages for slowly time-varying communication channels
1994 Edition, January 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

An adaptive hybrid ARQ scheme for slowly time-varying channels that aims to maximize the average throughput under a given reliability constraint is presented. Punctured convolutional codes and the Viterbi algorithm with the Yamamoto-Itoh retransmission protocol...

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