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The corrected least squares (CLS) approach using an over-determined model is investigated to decide the number of sinusoids in additive white noise. Like the total least squares (TLS) approach, the CLS estimation is different from the ordinary least squares (LS) method in that the noise variance is subtracted from the diagonal elements of the correlation matrix of the noisy observed data. Therefore...
This paper presents a smart window system which can transmit only necessary sound as siren of ambulance, but blocks any other unnecessary noises and disturbances in the primary path, by controlling the second window's vibration by piezoelectric actuators using information of the first window's vibration sensed by piezoelectric sensors. For the purpose, we propose the adaptive necessary signal extraction...
The direction-of-arrival (DOA) estimation and beamforming by an array antenna plays important roles in MIMO communication systems. In multipath environment, almost conventional subspace approaches with or without the eigen-decomposition adopt the spatial smoothing (SS) using multiple subarrays. This paper proposes a new iterative DOA estimation of partially or fully coherent signals without adopting...
Identification algorithm and its implementation are considered for direct closed-loop identification through output over-sampling. It is shown that the plant model can be identified from the input and output data obtained by output over-sampling even though the conventional identifiability conditions are not satisfied. Furthermore, its implementation for the controller and measurement device with...
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