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Antennas without phase center (AWPC) have been used for Direction-of-Arrival estimation. However, these structures, being symmetric, always face the whole-space ambiguity problem. This paper proposes a new asymmetric AWPC structure for DOA estimation that is able to resolve the ambiguity in the whole space. In addition, the structure is optimized in such a(More)
Recently, Compressive Sensing (CS) has been applied to array signal processing. In theory, Direction-of-Arrival (DOA) estimation based on CS recovery can work well in correlated environments. However, a large number of sensors (i.e., linear measurements) are still needed for CS recovery. To improve on this, we propose a new CS-based DOA estimation method(More)
Quality management represents company-wide activities to improve the quality level of products and works through customer orientation, continuous quality improvement, employees’ involvement, etc. to establish and sustain a competitive advantage. This paper presents result of an empirical analysis on quality management practices and its impact on competitive(More)
This study examines the link between Kaizen practices and different culture dimensions in Vietnamese manufacturing companies. The study follows the cultural framework suggested by House et al. (2004) and three typical Kaizen practices implemented in Vietnam such as Small Group Problem Solving, Process Control and Employee’s Suggestion. Statistical(More)
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