cox1_1101523995

本文对@:AB及其衍变模型进行了分析和总结，提出了直交门槛一般化自回归条件异方差#< 90 8 17C -D@:AB*模型。通过模型平稳性测试、@:效果检定、@:AB效果检定、模型阶数鉴定、模型参数估计与模型诊断对模型进行 评估，作者认为这种模型在估计投资组合资产收益的波动性上优越@:AB及其衍变模型。 (In this paper, @: AB model and its evolution are analyzed and summed up the proposed DC-AC threshold generalized autoregressive conditional heteroskedasticity# < 90 8 17C-D @: AB* model. Smooth adoption of the model testing, @: the effect of test, @: AB test the effect of model order identification, model parameter estimation and model diagnostics to assess the model, the authors suggest that this model portfolios in estimating the volatility of capital gains on the superior @ : AB and its evolution model.)

说明：  著名的灰色预测模型，用于人口、经济、资源等的发展预测( Famous gray prediction model for population, economy, resources, development of forecast )

本程序用于设定光谱通过FBG后在中心波长处的相位(The phase of the FBG at the center wavelength)

This program plots spectrograms (vertical slices of intensities versus frequencies, with slices plotted against time).

这是一个移动通信多径信道的功率谱响应（包括相位，延时响应等）的matlab程序。(This is a mobile communications multipath channel response to the power spectrum (including phase, Delayed response, etc.) Matlab procedures.)

用于求解多个信号源波达方向的求根MUSIC算法,不需要进行二维谱峰搜索(Root MUSIC algorithm for solving multiple sources DOA and calculation is greatly reduced than the MUSIC algorithm )

关于f16的模型以及用四元素和常规办法配平。(About f16 model and with four trim elements and conventional approaches.)

Matlab Apriori Assosication Rule mining

用matlab读取.dxf文件。本站原有代码dxf2coord_20.m中对于圆弧只能读出其圆心坐标及半径，缺少圆弧起始角及终止角，并不能在应用中实际用起来。修改后可以读出圆弧的起始角和终止角(the script can offer start angle and end angle of an arc,which are unable to access in an earlier script dxf2coord_20.m 。)

灰色模型的改进程序算法，包括初值和背景值的改进，(Improved gray model, including the initial and background values ​ ​ improve)