Document Type

Conference Proceeding

Publication Date




Source Publication

2019 53rd Asilomar Conference on Signals, Systems, and Computers

Source ISSN



A recently developed improved spectrogram that uses the discrete fractional Fourier transform (DFRFT) is used to retrieve the vibration signature that represents targets in synthetic aperture radar (SAR) data. The retrieved signature is used as input to a feature extraction process, which characterizes the vibration waveform using the DFRFT as well as histograms and statistics. The study of the performance of two classifiers, one trained with features extracted from vibration measurements and the other trained with feature extracted from simulated SAR data generated from the same vibration measurements, validates the suitability of the DFRFT-based spectrogram for retrieving and characterizing the dynamics of vibrating objects in SAR images.


Accepted version. Published in the proceedings of the 2019 53rd Asilomar Conference on Signals, Systems, and Computers. DOI. © 2019 The Institute of Electrical and Electronics Engineer. Used with permission.

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