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Showing papers by "John B. Moore published in 1974"


Journal ArticleDOI
TL;DR: In this paper, a number of generalizations of singular quadratic minimization theory for the finite-time case are considered, and new stability results are derived for the infinite-time problem, and novel techniques are introduced to facilitate the derivation of singular solutions.
Abstract: A number of generalizations of singular quadratic minimization theory for the finite-time case are considered. Also new stability results are derived for the infinite time problem, and novel techniques are introduced to facilitate the derivation of singular solutions for this case. Of significance is the fact that the new results make evident the duality that exists between singular control and singular filtering problems.

20 citations


Journal ArticleDOI
TL;DR: In this article, the quasi-optimal on-line demodulation of PFM signals in the presence of white Gaussian channel noise was derived by applying the extended Kalman filter theory to a state-space signal model.
Abstract: Novel demodulator structures are derived using a theory for the quasi-optimal on-line demodulation of pulse-frequency modulated (PFM) signals in the presence of white Gaussian channel noise. The basic demodulator consists of a phase-locked loop with time-varying gain elements. Furthermore, its integrators are appropriately reset as each new pulse is received. This modulator may be augmented with additional integrators and gain elements to achieve quasi-optimal demodulation with delay. The quasi-optimal demodulation approaches optimal demodulation, in the minimum mean-square-error sense, as the signal-to-noise ratio increases. The various quasi-optimal receivers are derived by application of the extended Kalman filter theory to a state-space signal model.

5 citations


Journal ArticleDOI
TL;DR: Novel demodulator structures are derived for quasioptimal on-line demodulation of pulse-frequency modulated (PFM) signals in the presence of white Gaussian channel noise.
Abstract: Novel demodulator structures are derived for quasioptimal on-line demodulation of pulse-frequency modulated (PFM) signals in the presence of white Gaussian channel noise. The basic demodulator consists of a phase-locked loop with its integrators appropriately reset as each new pulse is received. This modulator may be augmented with additional integrators and gain elements to achieve quasi-optimal demodulation with delay. The quasi-optimal demodulation approaches optimal demodulation, in the minimum mean-square error sense, as the signal-to-noise ratio increases. The various quasi-optimal receivers are derived by application of the extended Kalman filter theory to a state-space signal model.

1 citations