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说明：  用matlab语言实现傅里叶切片定理，以及基于反投影及滤波反投影的CT图像重建的程序设计试验(Matlab language with Fourier slice theorem, and on the back projection and filtered back projection image reconstruction program design CT test)

This class is in charge of lexical processing of the XPath expression into tokens.

GA PROGRAM for tuning

DS-CDMA通信系统中的空时移动信道估计，原文发表在IEE PROCEEDING OF COMMUNICATION上(DS-CDMA system of space-time mobile channel estimation, Original published in the IEE, 0c OF COMMUNICATION)

很好的分析了大规模MIMO中多小区导频污染问题，并给出了一些可行的减轻污染的方法，值得参考。(Good analysis of large-scale multi-cell MIMO pilot pollution problems, and gives some practical ways to reduce the pollution, it is also useful.)

实现稀疏贝叶斯模型的一个有效的学习算法的matlab函数包(Sparse Bayesian models to achieve an effective learning algorithm matlab function package)

VC维理论和结构风险最小化准则是统计学习理论中的重要内容,基于这一理论的支持向量机算法由于具有好的泛化性能受到重视,并被研究用于文本分类问题.基于多项式核的研究工作认为SVM的泛化能力不受多项式阶数的影响,并且能够处理很高维的分类问题,用于文本分类无需进行特征选择.研究发现,随着多项式核阶数的升高,SVM文本分类器会出现过学习现象,并且特征数越多越明显,特征选择是必需的.通过估计函数集的VC维,基于结构风险最小化理论对此问题进行分析,得出的结论跟实验结果相符. (err)

文件里包括了扩频系统中所需的gold码序列的产生。(File system, including the spread spectrum code sequence required to produce gold.)

1 swing bus、1 PQ bus、2 transfermor 以matlab劃出結構圖後計算各線路的電流電壓(1 swing bus, 1 PQ bus, 2 transfermor matlab draw diagram after calculation of current and voltage of each line)

本文在介绍MIMO无线通信系统模型的基础上，通过对比分析几种常用空时编码方法，选定空时分组码对信号进行编码并建立瑞利衰落信道模型，通过对两发一收及两发两收系统的仿真，研究接收天线数对系统接收信号可靠性的影响。之后进一步扩展到不同发射矩阵条件下研究多发一收系统的频谱利用率及误符号率，分析不同天线数目，不同发射矩阵条件下空时正交分组码检测算法的性能。(This paper introduced the MIMO wireless communication system model, through the comparative analysis of several commonly used method of space-time coding, grouping code for the selected space-time signal is encoded and establish Rayleigh fading channel model, through two rounds one and two rounds of closing Simulation of two closed systems, research receiving antennas to receive signals affect the reliability of the system. After further extended to study the conditions under different emission matrix of multiple spectral efficiency and symbol error rate of a closed system, analyze the different number of antennas, the performance under different emission matrix orthogonal space-time block codes condition detection algorithm.)