英语语法分析

The autocorrelation function is an even function.

自相关函数是一个偶函数。

This paper deals with the spectrum autocorrelation method.

本文提出谱自相关方法。

The strong convergence of sample autocorrelation is proved, and the convergence rate is obtained.

证明了样本自相关函数的强收敛性，并得到了强收敛速度。