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Since digital implementation of repetitive controllers is simpler than analog in many industrial applications, some design criteria for a discrete-time repetitive controller to suppress periodic disturbances within a specified frequency range are presented. The small gain theorem is applied to perform the controller design for system stability. Upper and lower bounds of the discrete-time repetitive...
Active appearance models are widely used to match statistical models of shape and appearance to new images rapidly. They work by finding model parameters which minimise the sum of squares of residual differences between model and target image. A limitation of AAMs is that they are not robust to a large set of gross outliers. Using a robust kernel can help, but there are potential problems in determining...
In this paper, we present an effective feature normalization algorithm to improve the robustness of automatic speech recognition systems. At front-end, minimum mean square error log-spectral amplitude estimation speech enhancement is adopted to suppress noise from noisy speech. Then, at back-end, the histogram equalization feature normalization is used to deal with the residual mismatch between enhanced...
A new design method of the repetitive control system for linear systems with time-varying norm-bounded uncertainties is presented, which can design a low-pass filter of the repetitive controller and a stabilizing controller simultaneously in the repetitive control system. Using a Lyapunov functional for the repetitive control system, sufficient conditions are derived in terms of a linear matrix inequality...
In this paper, a new adaptive weight computation algorithm for a robust array antenna is presented to improve the shortcoming of linearly constrained adaptive beamformerpsilas sensitivity to the mismatch between the prescribed and actual direction of arrival (MPDOA).The adaptive array minimizes the mean output power under the direction constraint that the mean square deviation between the desired...
The comparison and matching of computer components to computer data transmission is very significant. Given the current status of multimodal technology, hackers worldwide obviously desire the emulation of the computer data transmission. Using permutable theory and compact algorithms, it construct a novel method for the development of access points, which it use to confirm that the much-touted cacheable...
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