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The encrypted data in security chips will leaked by side-channel information such as running time, power consumption, electromagnetic signals. Which make it possible to side-channel attack. But the side-channel power consumption data used in the actual attack usually contains a lot of noise, which greatly reduces the success rate. In this paper, the wavelet de-noising research is based on power consumption...
Due to the problem of detecting weak signal in strong noise, a method of pulse signal detection was put forward which is based on multiresolution wavelet analysis. According to Parserval theorem, the frame of signal space decomposition and energy distributing was established by this method, and a complete orthogonal multi-resolution description is defined, the design of floating threshold of multiresolution...
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