Target Classification Using Features Based on Fractional Fourier Transform

This letter describe target classification from the synthesized active sonar returns from targets. A fractional Fourier transform is applied to the sonar returns to extract shape variation in the fractional Fourier domain depending on the highlight points and aspects of the target. With the proposed features, four different targets are classified using two neural network classifiers. key words: target, recognition, active sonar, pattern recognition, LFM, highlight model, fractional Fourier transform

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