轨道几何不平顺为平稳的正态分布和各态历经的随机变量。

The track geometry irregularity is a stable normal distribution and state-history random variable.

youdao

由于客人入住是一个随机过程，难以用准确的分布函数来描述，但作出某些合理的假设后，可将其变为平稳随机过程。

The registration of guest is in a random, it is difficult to describe by accurate distributed function, but it can be changed to stationary random process after making some rational assumption.

youdao

该文利用小波包变换的时频局部分析能力，研究了非高斯分布平稳随机噪声的统计特性，揭示了非高斯噪声信号的信号结构。

By exploiting wavelet packet transform to analyze signals both in time and frequency space, this paper researches the statistic property of non-Gaussian stationary noise and its signal structure.

youdao