利用高阶统计量恢复二维谐波

Two dimensional harmonic waves retrieval using higher order statistics

基于高阶统计量提出了一种频域恢复频率、时域恢复幅度的时频域相结合的二维谐波信号的恢复方法。该方法由于使用了高阶累积量，因此不再受背景噪声为高斯白噪声的限制，可应用于高斯噪声中二维谐波信号的恢复。

Based on higher order statistics,a time frequency domain method for two dimensional harmonic waves retrieval, in which the frequency is retrieved in frequency domain and the amplitude is retrieved in time domain is proposed.Because higher order cumulant is used,it is not limited in Gaussian white background noise,and is suit to Gaussian noise.The simulation results show the effectiveness of the proposed method.