该文讨论了采用一般最小二乘法和全局最小二乘法进行谱估计,并使用奇异值分解(SVD)方法来确定模型的AR阶数和参数,用Cadzow谱估计子估计功率谱,给出估计出的参数和频率的统计值.实验证明该方法能够有效的估计功率谱.“,”This paper elemates the spectrum using the nomal Least-squares and total Least-squares. the SVD was used to calculate the models AR order and pa