A SUPERRESOLUTION MIXED SPECTRAL ESTIMATION ALGORITHM USED FOR ACOUSTIC TARGET FEATURE EXTRACTION
一种可用于声目标特征提取的超分辨率混合谱估计算法

In this paper, A decoupled parameter estimation(DPE) algorithm for estimating parameters of the harmonic-group signal in colored noise is researched. In this algorithm, a "iterated harmonic-group clean algorithm" is presented to obtain the estimates of the parameters of the harmonic signal based on FFT. Then, the harmogram is used to decide the number of the harmonic signal. This algorithm not only is computationally simple and can provide supperresolution frequency estimation, but also is robust to mismodeling errors.