phase space

A new approach of short-term stock prediction using PSRT ( Phase Space Reconstruction Theory) combined with RNN ( Recurrent Neural Network) was presented according to the complex nonlinear character of stock time series.

根据股票指数时间序列复杂的非线性特性，提出以相空间重构理论与递归神经网络相结合的股票短期预测新方法。

In hyper dimensional phase space, similar sequence repeatability ( RPT ) of speech are calculated.

研究语音的相似序列重复度及其熵信息,分析比较了语音信号在相空间中的非线性特徵.

Phase φ causes the ro-tation of Wigner function in phase space.

相位φ引起了Wigner函数在相空间中的旋转。

For phase space reconstruction of ship-radiated noise, using auto correlation function and mutual information to select the delay-time, and using False Nearest Neighbors method to select the embedding dimension.

6研究了舰船辐射噪声的相空间重构。从自相关函数及互信息嫡两个方面讨论了相空间重构中延迟时间的选择。

Phase space reconstruction of magnetosphere from AE index ── discussion of the problems existed

利用AE指数重构磁层相空间&对存在问题的讨论

Research and application of phase space reconstruction theory in slope displacement prediction

相空间重构理论在边坡位移预测中的应用研究

One-dimension inundated area series is developed to multi-dimension inundated area series with reconstruction of phase space, and the multi-dimension series include ergodic information, so that more abundant information can be found in favor of ANN training.

通过相空间重构，把一维成灾面积时间序列拓展为多维序列，而多维序列包含着各态历经的信息，从而可挖掘更为丰富的信息，有利于神经网络的训练。

For time signal, the wavelet transform is equivalent to a kind of phase space reconstruction.

时域信号的小波分解可以等价于一种信号的相空间重构方法。

We analyze the local linear projective algorithm based phase space reconstruction in noise reduction techniques of nonlinear time series. How to choose the main parameters used in the method is also studied in this paper.

探讨了基于相空间重构的局部线性映射算法在非线性时间序列降噪技术中的应用，并给出了算法中主要参数的选取方法。

A Phase Space Analysis of Signal Noise Received by an Oceanic Lidar System

海洋激光雷达系统接收信号噪声的相空间分析

Wigner's phase space distribution functio

维格纳相空间分布函数

Two independent phase operators were denned and corresponding eigenstates in the supersymmetric harmonic oscillator's two-mode phase space were obtained.

在超对称谐振子的双摸相位空间里构造了二类独立的相位算符并相应地求出了其本征态。

This model indicates that there are three possible types of equilibrium point in the phase space during the evolution of the rock mass system, i.e., spiral point and improper point and saddle point.

Ruina单变量摩擦定律基础上建立的岩体系统分岔模型，分析了在实践中遇到的问题，结果表明边坡岩体系统在演化过程中会出现三个奇点类型，即焦点、结点及鞍点。

Time delay method was used to reconstruct the phase space of underwater noise time series based on nonlinear dynamics theory.

以非线性动力学理论中的相空间重构理论为基础，利用延时法对水下噪声时间序列信号进行了相空间重构。

Since study of center field on noncommutative phase space is also interesting.

因此，非对易相空间中的中心场问题也是值得研究的。

Phoneme Recognition Using SVM In Reconstructed Phase Space

基于相空间重构的SVM音素识别

The study on runoff prediction model of BP neural network based on phase space and GA

基于相空间遗传BP神经网络的径流预测研究

Phase space reconstruction of single variable time series and its application

单变量时间序列相空间重构及应用研究

The characteristic analysis of the calculating for the time series fractal dimension is discussed. An formula for calculating the correlation integral by the point distribution Probability function in phase space is obtained.

就时间序列分数维的计算过程进行特征分析，用相空间中点分布的概率密度函数推导出关联积分的计算公式，并就一般分数维的计算方法作了误差分析。

Derivation for the coupling coefficient and power loss of a demountable connector with graded index fibers is made in this paper by means of Wigner distribution function in the phase space. Numerical results are calculated by the computer.

本文介绍用相空间中的Wigner分布函数，推导渐变折射率活动连接器中两光纤有一间隙时的耦合系数和功率损失，并算出了数值结果。

Reconstruction of Phase Space in Bifurcation Parameter Identification of Nonlinear Dynamical Systems

辨识非线性动力系统分岔参数的相空间重构方法

Some collective fluctuations of physical quantities are calculated in this paper. The second moments of electromagnetic field fluctuations, Coulomb field and representative point density fluctuations in phase space are given.

计算了等离子体物理量的集体涨落：电场涨落、磁场涨落、库仑电场涨落引起的相空间代表点密度涨落量的二级矩。

On the basis of phase space analysis about measured vibration signals, the characteristics of special nonlinear autonomous vibration about the structure included in the system were obtained.

在实测的振动信号相空间分析的基础上，得到系统所包含的结构振动的特殊非线性自主振动的特征。

Based on discussion of multi-feature recognition method for chaotic time series, the paper studies feature extraction of chaotic time series and its application in multi-variable phase space reconstruction under certain noise background.

本文在探讨混沌时间序列多特征识别方法的基础上，研究一定噪声背景下，混沌序列的特征提取方法及其在多变量相空间重构中的应用。

Studying the Trajectories in Phase Space of Henon-Heiles System

Henon-Heiles体系的相空间轨迹研究

Lyapunov index and time scale of predictability in phase space

Lyapunov指数和可预报时间尺度及其应用

We also investigate the effective potential of the system in phase space, which is consisted of two weakly-coupled BECs through a double-well.

本文就双阱中弱耦合的玻色-爱因斯坦凝聚体系统在位相空间中的有效势进行了研究。

Introducing chaos theory in the disaster resources field, the forecasting models for the inundated area of flood disaster were brought forward integrating reconstruction of phase space and neural network.

摘要在灾害领域中引入混沌理论，将相空间重构理论与神经网络相结合，提出了洪灾成灾面积预测模型。

At last, we do the reconstruction of the phase space and compute its correlation dimension and Kolmogorov entropy.

最后，对恒生指数日收盘价时间序列进行相空间重构，对其关联维数以及Kolmogorov熵进行了计算。

And several questions about the structure of the phase space of the imbedded Markov chain and its irreducibility and aperiodicity for this kind of queueing system are discussed completely, and the formula of the periodic value is also obtained.

在此基础上，完整地讨论了该系统嵌入Markov链状态空间的结构、不可约非周期性条件，并获得了周期值公式。