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Memory integrity in embedded systems has been a longstanding issue in trusted system design. Existing schemes perform runtime integrity verification using memory integrity trees in order to secure untrusted external memories from malicious attacks e.g. replay, spoofing, and splicing. However, the balanced memory integrity trees used in existing approaches lead to excessive memory access overheads...
In this work a novel electronic tongue (ET) using Fourier transform impedance spectroscopy has been demonstrated. Odd random phase multisine waveform has been used as an excitation signal. Texas Instruments’ PCM2900B USB audio CODEC chip has been used as a signal generation and an acquisition module for the ET. The acquired impedance features have been further subjected to Principal Component Analysis...
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