This estimator can be improved by • Smoothing the sample sequence before computing the transform • Segmenting the sample sequence and computing more estimators that can be averaged • Using overlapping sample sequences These t

利用自相关函数法和周期图法实现随机信号的功率谱估计-Use of the autocorrelation function and periodogram method to achieve random signal power spectrum estimation

用周期图法求解功率谱曲线，并搜索信号频率值-Periodogram method for solving the power spectrum curve, and search for the signal frequency value

此程序用于产生零均值单位方差高斯白噪声的1000个样点，并利用周期图法和平均周期图法进行自相关的估计。(This program is used to produce 1000 sample points under the distribution of zero mean unit variance of Gaussian white noise , and the Periodogram method and average cycle diagram method are used t