Abstract Non-destructive evaluation has been developed to identify cable tension for any end-rotational stiffness condition. One of the existing methods uses multiple vibration measurements. This paper aims study effect shifting closest sensor support in measurements through numerical simulation. A fixed at both ends vibrates under artificial random excitation is simulated. Three cases five syn...

We present in this paper a subspace approach for enhancing a noisy speech signal. The original algorithm for model identification from which we have derived our method has been used in the field of fault detection and diagnosis. This algorithm is based on principal component analysis in which the optimal subspace selection is provided by a variance of the reconstruction error (VRE) criterion. T...

In this paper, we propose a new direction of arrival (DOA) estimator for sensor-array processing. The estimator is based on a linear algebraic connection between the standard subspace model of the array correlation matrix and a special signal-plus-interference model, which we develop in this paper. The estimator we propose is a signal subspace scaled MUSIC algorithm, which we call SSMUSIC. It i...

We present in this paper a novel algorithm for single channel speech enhancement. It is based on a subspace approach in the Bark domain and an optimal subspace selection by the minimum description length (MDL) criterion. The processing in the Bark domain allows us to take into account in an optimal manner the masking properties of the human auditory system. The subspace selection provided by th...

We prove a new combinatorial characterization of polynomial learnability from equiva lence queries and state some of its consequences relating the learnability of a class with the learnability via equivalence and membership queries of its subclasses obtained by restricting the instance space Then we propose and study two models of query learning in which there is a probability distribution on t...

This document constitutes the consolidated deenition of Chimera; it is a revised version of the T21D2 deliverable presented in June 1993 Author(s):