白噪声中f~(-2)随机过程的最优估计

从功率谱的角度分析了白噪声中f-2随机过程的最优估计问题，推导了线性估计方法的精度极限，并通过对若干线性估计方法的精度进行分析和比较，得到了一些有意义的结论。

The Estimation of f~(-2) Random Process from White Noise Background

With the presentation of half-integrating /half -differentiating operator model of predse-clock noise, the seperation (according to noise part) of precise-clock noise becomes aninteresting research topic. It can be regarded as five same steps, each of which containsthe estimation of f -1 random process from white noise background. But the estimation off-2 random process from white noise background is more basic than the former. It will benecessary to distinguish the differences between different methods stated above. Accordingto the deduction in this paper, the limits of error variances of different methods are listedin the following table:The conclusion of this paper will be useful to the study on the estimation of f-2 random process from white noise background.