1_Intro

此函数用于产生脉冲超宽带系统的训练序列的波形。输出参数有三个：bits--发送的数据,stx--发送的信号,ref--参考信号 发送端调制方式为TH-PAM(The emerging ultra-wideband (UWB) system offers a great potential for high data rate wireless multimedia applications of the home entertainment and industry, as well as for low data rate sensor networks involving low power devices~cite{paragraph1}. One of the most acute challenges in realizing these potentials of the UWB systems is the timing acquisition. Timing errors as small as fractions of a nanosecond could seriously degrade the system performance~cite{paragraph21}. The difficulty in UWB synchronization arises from UWB signals being the ultrashort low-duty-cycle pulses operating at very low power density.)

解二维possion方程，利用pcg方法求解第一类边值问题(Solution the dimensional possion equation, using the pcg method for solving the First Kind Boundary)

基于matlab的DSSS通信系统设计，有详细的文档设计以及仿真结果(Matlab-based design of a DSSS communication system, a detailed document design and simulation results)

this matlab source code is for starting

本程序利用改进的支持向量机理论进行混凝土抗压程度预测，取得了较好的效果(This procedure using improved support vector machine (SVM) theory to carry on the concrete compressive degree prediction, good results have been achieved)

flexible sigma delta adc

深度典型相关分析的python实现，DCCA是Galen Andrew于2013年发表于ICML上的一篇文章，提出了将深度网络与CCA结合的新方法。(Deep canonical correlation analysis)

说明：  假设每个延时单元延时10ms.被传输的基带信号x(t)是一个0，1交替变换的矩形二进制脉冲序列，脉宽为10ms，并假设x(t)通过一个稳定的散射信道后才到达均衡器，成为2径信号，这两路信号幅度相等 ，相隔15ms。用MATLAB实现一个2级LMS均衡器(equalizer)

参考文献《基于泰勒级数展开的蜂窝TDOA 定位算法》以及 《基于Chan氏算法和Taylor级数展开法的协同定位方法》对Taylor算法进行仿真；认定基站数目为5个；(The Talyor algorithm in the TDOA location based on the CDMA cell network)

不考虑压缩的REYNOLDS方程的求解简单程序(Not consider compression REYNOLDS equations simple procedure)