正弦波模型下线性预测谱估计方法的一种修正算法

A modified LP spectral estimate procedure based on the sinusoidal wave model

基于正弦波信号模型,文中提出了一种简单的线性预测谱估计修正算法。首先,用流行的有效算法求得线性预测误差滤波器系数矢量 A^(?),然后简单地令口α_0=1—W_(opt)构造新的线性预测误差滤波器系数矢量 A_0^(?)。理论和计算机模拟实验都显示这种算法对提高谱估计性能效果显著。

A simple modified linear prediction spectral estimate procedure based on the sinusoidalwave model is presented.First,by using a current procedure to find out the linear predictionerror vector A',and then by simply letting α_0=1-W_(opt) to constitute a new LP error vectorA'_0,the new approach is formulated.The theoretical analysis and experimental results demon-strate its effectiveness.