Showing papers by "John B. Moore published in 1970"
TL;DR: If a known linear system is excited by Gaussian white noise, the calculation of the output covariance of the system is relatively straightforward, but the harder converse problem, that of passing from a known covariance to a system which will generate it, is considered.
Abstract: If a known linear system is excited by Gaussian white noise, the calculation of the output covariance of the system is relatively straightforward. This paper considers the harder converse problem, that of passing from a known covariance to a system which will generate it. The problem is solved for covariancesR
y
(t, τ) with |R
y
(t, t)| < ∞ for allt and such that they-process is Gauss-Markov, i.e., it may be obtained as the output of a linear finite-dimensional system excited by white noise.
16 citations
TL;DR: In this paper, two basic methods for designing feedback compensators which may be used to achieve arbitrary closed-loop pole positions are presented, and a correspondence shows that when each method is used within the framework of optimal control the same compensator structure results, but the more standard approach using a state estimator and a linear law appears to be the more attractive from the information available.
Abstract: Two basic methods for designing feedback compensators which may be used to achieve arbitrary closed-loop pole positions are now available. This correspondence shows that when each method is used within the framework of optimal control the same compensator structure results, but the more standard approach using a state estimator and a linear law appears to be the more attractive from the information now available.
7 citations
TL;DR: In this paper, it is shown that a nominally linear system with relay feedback is insensitive to unintentional time-variable gains or nonlinearities in the input transducers when the relay is chattering.
2 citations
TL;DR: Extensions to a straightforward, always convergent method for solving polynomial equations given in a previous paper are considered and it is believed that in terms of simplicity and convergence properties, the approach is more efficient than presently available methods.
Abstract: Extensions to a straightforward, always convergent method for solving polynomial equations given in a previous paper are considered. The extensions consist of additional simple calculations and logic instructions which considerably improve convergence rate for the cases when multiple roots exist or when roots are close together. It is believed that in terms of simplicity and convergence properties, the approach is more efficient than presently available methods.
1 citations