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In recent years, feature extraction method make an achievement in pattern recognition. It extracts not only useful feature for classification, but also reduces the dimension of pattern sample. Linear discriminant analysis is an important method for image recognition, it achieve significant development both in theory and applications. Local fisher discriminant analysis redefines the between-class and...
This paper presents a new technique for evaluating the observability of the simultaneous localization and mapping (SLAM) problem. The state vector of an estimation theoretic formulation of the SLAM problem is recast to include all robot poses from which the measurements are made. This converts SLAM to a problem of estimating a set of unknown, constant random variables. Fisher Information Matrix of...
Based on the space vector PWM (SVPWM) strategy, this paper mainly focuses on the control method of neutral-point voltage balancing problem in three-level NPC PWM VSI inverter. A comprehensive mathematic model of three-level inverter is set up. Then, a simple neutral-point voltage balancing control method, which only requires the direction information detection of each phase leg's current and neutral-point...
This paper explores the mathematic model and control method of neutral-point voltage balancing problem in three-level NPC inverter. A comprehensive mathematic model of three-level inverter is established. Then, based on the space vector PWM strategy, a simple neutral-point voltage balancing control method, which depends on the direction information detection of each phase leg current and neutral-point...
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