【摘要】 利用泰勒级数展开式,按照最小二乘原理,对时间延迟大于测量数据长度的相关函数值进行拟合外推,提出一种新的谱估计方法——相关拟合外推法。实验结果证明,这种新方法是有效的,而且在谱估计性能方面优于窗谱法和伯格法(最大熵谱法)。更多还原

【Abstract】 Propose a new spectrum estimation method——the correlation fitting extrapolation method which extrapolates those correlation function values with a time delay larger than the length of the measurement data sequence using the Taylor expansion function and the least square method. Experimental results show that this new method is valid and possesses a stronger spectrum resolution ability than that of the windowing spectrum estimation method and the Burg method which are most frequently used.更多还原