Demo Spectral Analysis of Actual Collected Ship Radiated Noise

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Resource Overview

Demo spectral analysis of actual collected ship radiated noise was performed using both narrowband demodulation and broadband demodulation methods, successfully extracting clear shaft frequency and blade frequency information with signal processing techniques.

Detailed Documentation

Based on the user-provided data, we conducted demo spectral analysis on actual collected ship radiated noise. The analysis implemented two distinct signal processing approaches: narrowband demodulation and broadband demodulation. Using narrowband demodulation, we applied bandpass filtering around specific frequency ranges to isolate harmonic components, while broadband demodulation employed envelope detection algorithms to capture wider frequency characteristics. Through these analytical methods, we successfully obtained clear shaft frequency and blade frequency information. These results provide valuable insights for further research and analysis, offering detailed information about ship radiated noise characteristics that can be utilized in marine acoustic signature studies and underwater target identification systems.

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