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Atrial regions hosting dominant frequency (DF) may represent potential drivers of persistent atrial fibrillation (persAF). Previous work showed that DF can exhibit cyclic behaviour. This study aims to better understand the spatiotemporal behaviours of persAF over longer time periods. 10 patients undergoing persAF ablation targeted at DF were included. Left atrial (LA) non-contact virtual electrograms...
We study the problem of constructing affine extractors over $\GF(2)$. Previously the only known construction that can handle sources with arbitrarily linear entropy is due to Bourgain (and a slight modification by Yehudayoff), which makes extensive use of complicated inequality manipulations and relies on a careful choice of a polynomial. In this paper we give a new and conceptually much cleaner construction...
The technology of spectrum signal tracking and demodulation not only involves the designs of complex high-speed digital circuits, but also includes the designs of tracking algorithm. In the traditional design, the designers usually adopt the design methods based on FPGA&DSP to achieve all the above contents, which means that the carrier-DCO, code-DCO, the circuits of correlation and integral can...
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