两区四机系统算例

波束形成就是从传感器阵列重构源信号。（1）、通过增加期望信源的贡献来实现；（2）、通过抑制掉干扰源来实现。经典的波束形成需要观测方向(期望信源的方向)的知识。盲波束形成试图在没有期望信源方向信息的情况下进行信源的恢复。 波束形成技术的基本思想是：通过将各阵元输出进行加权求和，在一时间内将天线阵列波束“导向”到一个方向上，对期望信号得到最大输出功率的导向位置即给出DOA估计。 虽然阵列天线的方向图是全方向的，但阵列的输出经过加权求和后，却可以被调整到阵列接收的方向增益聚集在一个方向上，相当于形成了一个”波束”。这就是波束形成的物理意义所在。

自己做的一个发送邮件程序，对学习SMTP 有一定的启发作用吧-own a mail procedures, to learn SMTP inspired a certain function

使用430单片机，iar环境。二总线、低功耗、漏电检测(msp430 Leak Currunt Check)

为了循序渐进的了解投票功能，本人专门开发了这套简单投票系统，投票的数据保存在Sql数据库中，只保存投票的项目及票数。 本系统的实现原来是用户每投一次，将在数据库中对应的项目票数上加1。该系统数据源采用了SqlDataSource，其中自定义了很多方法和函数。 管理地址为/ItemManager.aspx -Step-by-step understanding of voting in order to function, I developed a set of specialized simple voting system, the voting data stored in the Sql database, only to vote to preserve the items and the number of votes. Realize the system was user vote once each, will be in the database corresponds to the item number of votes plus one. The system data source using the SqlDataSource, which a lot of custom methods and function. Management of address/ItemManager.aspx

基于互功率谱的时延估计，包括广义互相关函数GCC时延估计，已调制信号计算其普相关密度。( Based on the time delay estimation of power spectrum, Including the generalized cross-correlation function GCC time delay estimation, Modulated signals to calculate its density Pu-related.)

二进制查找树实现代码-achieve binary search tree code

java实现的几类排序算法包括,快速算法,SHELL算法等非常经典的算法-achieving several of the sorting algorithms include rapid algorithm, SHELL algorithm very classic algorithm

飞行器上升段航迹优化问题，采用DIDO工具箱进行全弹道轨迹优化(DIDO toolbox is used to optimize the whole trajectory of aircraft in ascent phase)

基于dq坐标系下搭建了系统的增强型锁相环系统PLL，相比传统dq坐标系下的仿真模型，其仿真结果非常好！(An enhanced PLL based on dq coordinate system is built. Compared with the traditional simulation model in dq coordinate system, the simulation results are very good.)

HHT主要内容包含两部分，第一部分为经验模态分解（Empirical Mode Decomposition，简称EMD），它是由Huang提出的；第二部分为Hilbert谱分析（Hilbert Spectrum Analysis，简称HSA）。简单说来，HHT处理非平稳信号的基本过程是：首先利用EMD方法将给定的信号分解为若干固有模态函数（以Intrinsic Mode Function或IMF表示，也称作本征模态函数），这些IMF是满足一定条件的分量；然后，对每一个IMF进行Hilbert变换，得到相应的Hilbert谱，即将每个IMF表示在联合的时频域中；最后，汇总所有IMF的Hilbert谱就会得到原始信号的Hilbert谱。(The main content of HHT includes two parts. The first part is Empirical Mode Decomposition (EMD), which was proposed by Huang, and the second part is Hilbert Spectrum Analysis (HSA). Simply speaking, the basic process of HHT processing non-stationary signals is: firstly, the given signal is decomposed into several intrinsic mode functions (represented by Intrinsic Mode Function or IMF, also known as intrinsic mode functions), which are components satisfying certain conditions; secondly, Hilbert transform is applied to each IMF. The corresponding Hilbert spectrum is obtained, that is, each IMF is represented in the joint time-frequency domain; finally, the Hilbert spectrum of the original signal is obtained by summing up the Hilbert spectrum of all IMFs.)