Institute of Electrical and Electronic Engineers (IEEE)
IEEE Geoscience and Remote Sensing Letters
Original Item ID
Hankel rank reduction (HRR) is a method that, by prearranging the data in a Hankel matrix and performing rank reduction via singular value decomposition, suppresses the noise of a time-history vector comprised of the superposition of a finite number of sinusoids. In this letter, the HRR method is studied for performing clutter suppression in synthetic aperture radar (SAR)-based vibrometry. Specifically, three different applications of the HRR method are presented. First, resembling the SAR slow-time signal model, the HRR method is utilized for separating a chirp signal immersed in a sinusoidal clutter. Second, using simulated airborne SAR data with 10 dB of signal-to-clutter ratio, the HRR method is applied to perform target isolation and to improve the results of an SAR-based vibration estimation algorithm. Finally, the vibrometry approach combined with the HRR method is validated using actual airborne SAR data.
Pérez, Francisco; Santhanam, Balu; Dunkel, Ranlf; and Hayat, Majeed M., "Clutter Suppression via Hankel Rank Reduction for DFrFT-Based Vibrometry Applied to SAR" (2017). Electrical and Computer Engineering Faculty Research and Publications. 544.
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