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Quantized Constant-Q Gabor Atoms for Sparse Binary Representations of Cyber-Physical Signatures
2020
Entropy
Increased data acquisition by uncalibrated, heterogeneous digital sensor systems such as smartphones present new challenges. Binary metrics are proposed for the quantification of cyber-physical signal characteristics and features, and a standardized constant-Q variation of the Gabor atom is developed for use with wavelet transforms. Two different continuous wavelet transform (CWT) reconstruction formulas are presented and tested under different signal to noise ratio (SNR) conditions. A sparse
doi:10.3390/e22090936
pmid:33286705
pmcid:PMC7597198
fatcat:xyow2fphzffrtjl57wzbwfyud4