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Robust weak signal detection is quite a difficult problem in the presence of interferences and noise. Generally, adaptive beamforming is an efficient way of interference suppression. However, conventional adaptive beamforming, e.g. MVDR may degrade significantly due to mismatch in the practical applications. In this paper, a robust adaptive interference suppression method is presented and then the...
This paper presents a new RFID reader antenna design with its radiation beam switchable to track the tags in in the near-zone of array aperture. The antenna is realized by using microstrip antenna array with a beam-forming network based on Butler matrix. The radiation of array is focused in the near zone to avoid interferences resulted from the scatterers in the vicinity of antenna. The design approach,...
In embedded SoC design, memory hierarchies are playing increasingly important roles for system performances. There is a significant latency gap between internal and external memory accesses. The external memory access might downgrade the performance of embedded systems. Application developers must explicitly handle data transfer between external and internal memories. That is a burden for programmers...
Various processing methods for association data mining are presently being looked into. Most of them focus on data structure and computation improvement. The data structures usually have a high degree of data compression ratio and can express the original information from the database with integrity. There is also no need to obtain information from the database again. However, not many studies concentrate...
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