查询词典 nonstationary

One is stationary time series, the other is nonstationary time series. In daily time we usually observe time series which is almost nonstationary especially in the phenomena of society and economic.

在实际问题中，我们经常遇到的序列，特别是反映社会、经济现象的序列，大多数并不平稳，并且呈现出明显的趋势性或周期性，因此研究非平稳时间序列的建模具有很重要的现实意义。

In nearly twenty years, it has been focuses of Time series analysis to test and model nonstationary time series.

近二十多年来，非平稳性时间序列的检验以及建模已经成为时间序列分析的焦点问题。

For nonstationary Stokes problem ,materials'anisotropic character should be considered in a boundary layer or near the angular of the domain fJ.

对发展型Stokes方程，由于边界层或区域的拐角处需考虑物质的各向异性特征。

Stationary and nonstationary processes, including ARIMA processes. Estimation of process mean and autocovariance function. Fitting ARIMA models to data. Statistical tests for white noise. Forecasting. State space models and the Kalman filter. Robust time series analysis. Regression analysis with correlated errors. Statistical properties of long memory processes.

静态和非静态过程(包括 ARIMA 过程)，均值和时间序列分析：自协方差估计，用 ARIMA 模型拟和数据，白噪声序列的统计检验，预报，状态空间模型和 Kalman 过滤，时间序列分析的稳健性，残差具有相关性的回归分析。

However, we found, for nonstationary panels with deterministic trends, the S_N test statistics would be biased and its asymptotic distribution would not be standard normal.

但我们的研究表明，在非平稳综列数据含有确定性趋势时，SN检验是有偏的，不再服从标准正态的渐近分布，而需要进行修正。

Keywords: Blind source separation; Blind equalization;biquadratic cost function; Multistage Decomposition; Nonstationary signal

中文关键词：盲源分离；盲均衡；双二次代价函数；多阶段分解；非平稳信号

The computer simulation results show that the weight vectors obtained by the proposed algorithm allow the space-time adaptive processor outperform the Capon adaptive processor for the rejection of the clutter with nonstationary characteristics.

实验结果表明，用该算法获得的权值能有效地改善非平稳环境下杂波抑制性能。

In this paper, we consider denumerable state nonstationary Markov decisionprocesses with average criterion .

本文考虑可数状态空间非平稳马尔可夫决策过程的平均目标。

Time-Frequency parameter estimation and direction finding for nonstationary signals impinging on an antenna array over a wide frequency band (2~18GHz) is under in-vestigation, and a new method for parameter and 2-D Angle-Of-Arrival estimation of spatio-temporal undersampled LFM sources is proposed in this paper.

摘要针对宽频段(2-18GHz)内非平稳来波信号的参数估计和测向问题，提出一种时空欠采样线性调频信号参数与二维到达角联合估计方法。

A nonstationary EOQ model with lead time uncertainty was discussed in this paper.

考虑了在订货时间不确定且EOQ不是整数情况下的最优订货量问题。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。