Zhang Guo-jun

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The characteristic spectral line provides a basis for the ship identification and location tracking, therefore, the research on extracting the characteristic line spectrum has important significance in practice. The method combining Welch algorithm with Chirp-Z transform can extract the spectral line from the ship-radiated noise effectively. Both the(More)
Target feature extraction is a prerequisite for the target recognition. This paper mainly researched on extracting the features of underwater targets based on the time-frequency analysis. The method of time-frequency analysis-S transform was introduced and applied in underwater signal processing. The single-frequency signal, pulse signal and two kinds of(More)
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