Harmonic Recovery Using the MUSIC Algorithm
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In this paper, we employ the MUSIC (Multiple Signal Classification) algorithm for harmonic recovery. This high-precision algorithm can accurately resolve frequency components separated by as little as 0.013Hz. Research demonstrates that the MUSIC algorithm has extensive applications in signal processing, particularly excelling in frequency estimation and harmonic recovery tasks. The implementation typically involves constructing a signal covariance matrix from sampled data, performing eigenvalue decomposition to separate signal and noise subspaces, and calculating the pseudospectrum to identify frequency components through peak detection. Its exceptional accuracy and robust performance make it an indispensable tool in engineering practice. Consequently, across numerous domains, the MUSIC algorithm has become one of the preferred methods for signal processing applications.
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