two-stream approximation

According to the spatial and temporal correlation in sensor data, our data correlation model is divided into two layers: the local estimation model and the data approximation model.

针对数据的时间相关性和空间相关性，我们将数据相关性模型分为本地估计模型和数据近似模型两层。

The PID Gain Predictive Control Based on Two Approximation Model

PID增益基于神经模糊网络的预测控制二、末日意识

In this paper, an electrostatic model for transitional domain of ESF is derived from plasma two-fluid equations, then, its spectrum equation is obtained according to the weak coupling approximation formalism of plasma turbulence.

本文提出了研究Transition区谱分布的静电模型，并按等离子体弱耦强湍理论对其重正化得到了谱方程。

Electron scattering from argon in laser field is investigated employing the second Born approximation. The absolute differential cross section of e Ar scattering with one, two, and three photon exchange at scatering angles 1 °~ 26 ° are calculated.

利用第二玻恩近似方法（SBA）对激光场中eAr的散射进行了研究，计算了散射角为1°～26°，交换多个光子的微分散射截面。

The adaptive law utilizes two type of errors in the adaptive fuzzy systems, the tracking error and ( approximation error.)

该方法考虑了跟踪误差和逼近误差对参数自适应律的共同影响，并对模糊逼近误差和外扰采用H∞补偿控制。