and Phrases: principal component; estimate; regression analysis; many-to-many; stationary field; time series analysis; forecast.
主成分; 估计; 回归分析; 多对多; 平稳域; 时间序列分 析; 预测。
参考来源 - 经济预测统计模型的研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
本文证明了时间域内的平稳相关序列经离散傅里叶变换之后，听得到的是频域内的正交随机序列。
This paper proved that a frequency stochastic sequence obtained from a stationarily correlated time series by using discrete Fourier transform is orthogonal.
由于基于循环平稳的阵列处理方法利用了不同信号的循环频率不同这一时域特征，将多个信号在循环频率域进行分离。
Since the performance of cyclostationarity-based array processing methods suffers from severe degradation if there is a small mismatch in the cycle frequency of the signals of interest.
针对齿轮箱升降速过程中振动信号非平稳的特点，将阶次跟踪、角域平均和幅值、相位解调分析技术相结合，提出了基于幅值和相位解调分析的齿轮箱故障诊断方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order tracking technique and Angle domain average technique were presented.
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