论文部分内容阅读
针对一般谐波表达式导出在四阶累积量下的相应Ｙ－Ｗ方程模型和频率估计方 法。利用四阶累积量对高斯噪声具有不敏感性的特点，实现了高斯白噪声或色噪声污染下谐 波信号频率与功率谱的正确估计。仿真实验证明了该方法即使在色噪声中仍具有较高的估计 精度。
For the general harmonic expression, the corresponding Y-W equation model and frequency estimation method under the fourth-order cumulant are derived. By using the fourth-order cumulant to be insensitive to Gaussian noise, the correct estimation of harmonic frequency and power spectrum under Gaussian white noise or colored noise pollution is achieved. Simulation results show that this method still has high estimation accuracy even in color noise.