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Research on Active Sonar Object Echo Signal Enhancement Technology in the Spatial Fractional Fourier Domain | SpringerLink
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Echo Signal Processing (The Springer International Series in Engineering and Computer Science, 725): Ricker, Dennis W.: 9781402073953: Books - Amazon
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Echo signal (a) and amplitude of the Fourier spectra of an echo signals... | Download Scientific Diagram
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Echo signal for the HeLa cell with resolved echoes from the top and... | Download Scientific Diagram
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Pulse-echo signal (60 kHz) transmitted and received through a couple of... | Download Scientific Diagram
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