Now showing items 21-30 of 39
Two-stage identification of closed-loop systems
A two-stage identification method based on modeling error compensation for systems operating in closed loop is presented. The feedback regulator is assumed linear, time-invariant. The model structure and the identification ...
On optimal stationary control of systems with state dependent noise
This note proposes a simplified existence criterion for the linear quadratic optimal control law for systems with state dependent noise.
A frequency-scanned slot-array on a coaxial slow-wave structure
Frequency-scanned antenna arrays usually employ a sinuous feed to obtain a high frequency sensitivity , . It has been realized  that this effect can alternatively be produced by using a slow-wave feed, such as a ...
On optimum receivers for analog communication in impulsive noise
In this paper the problem of impulsive noise suppression in analog communication systems is considered. The problem of demodulation of amplitude and phase modulated signals in the presence of impulsive noise is formulated ...
Linear antenna arrays with broad nulls with applications to adaptive arrays
The problem of designing a class of linear antenna arrays with broad nulls against interfering signals of variable direction of arrival is considered. The problem is formulated in an appropriate signal space selected for ...
A novel theorem with potential application to automatic equalization
When the signs of the alternate terms of a symmetric discrete time series are reversed and the resultant series is convolved with the original, the newly created time series will have alternate values equal to zero. This ...
Aggregation matrix for the reduced-order continued fraction expansion model of Chen and Shieh
A relationship between the states of a high-order system, and its reduced-order continued fraction expansion model of Chen and Shieh, has been derived. This relationship, in the form of an aggregation matrix, has been used ...
Digital low-pass filtering using the discrete Hilbert transform
A matrix formulation for a digital low-pass filter, alternative to that given by Sabri and Steenaart, is presented. It is shown that the new formulation offers computational advantages and has better noise performance.
On bootstrap identification using stochastic approximation
A two-stage state and parameter estimation algorithm for linear systems has been developed. Stage 1 uses a stochastic approximation method for state estimation, while stage 2 considers parameter estimation through a linear ...
Identification of stochastic time-delay systems
A method is presented to identify time lags present in systems described by linear, stochastic dynamical models usually encountered in process control. The model equation is first discretized and converted into a ...