ASK, OOK, FSK, BPSK, QPSK, 8PSK(ofdm)de的调制方式

双边带电路-Bilateral band circuit

(1) 设计一个程序，用于根据用户输入的命令行参数数量来计算长方形、正方形、三角形的面积。如果输入的参数为一个、二个、三个则它们应分别对应正方形、长方形、三角形，如果没有参数，则通过异常处理方法现实错误消息。（用于计算面积的方法是一个重载的方法。提示：定义一个抽象的父类，并提供一个抽象的方法area(). 再派生出三个子类，重写area()方法，然后在main方法中用多态来实现具体的面积函数的调用）。-(1) design a program based on user input for the command line parameters to calculate the number of rectangular, square, triangle area. If the input parameter is one, two, three then they should correspond to a square, rectangle, triangle, without parameters, exception handling through the real error message. (Used to calculate the area is an overloaded method. Note: the definition of an abstract parent class, and provides an abstract method area (). To send birth to three sub-classes override area () method, and then in main method using multi-state to achieve a specific area of a function call).

％ 该Matlab程序基于牛顿－拉夫逊算法，用于计算已知导纳矩阵、PQ节点、PV节点、平衡节点(UA)的电力网络潮流 ％ U - 各节点母线电压 S - 各节点注入功率 S_net - 电力网络总损耗 ％ PQ_P - 实算PQ节点注入有功功率 PQ_Q - 实算PQ节点注入无功功率 ％ delt_PQ_P - 实算PQ节点有功功率修正值 delt_PQ_Q －实算PQ节点无功功率修正值 ％ delt_UA_P - 实平衡节点有功功率修正值 delt_U_2 - 实平衡节点电压平方修正值 ％ delt_PQV - 实算P Q U^2修正值 J - 雅可比矩阵 ％ e - 电压实部 f - 电压虚部 delt_ef - 电压实部与虚部修正值- The Matlab program based on the Newton- Raphson algorithm is used to calculate the admittance matrix is known, PQ node, PV node, the node balance (UA) the trend of the electricity networks U- the node bus voltage S- each node injection power S_net-- The total loss of electric power networks PQ_P- operator PQ is injected into active nodes PQ_Q- operator PQ is injected reactive power node delt_PQ_P- is considered the correct value of active power PQ node delt_PQ_Q- really count PQ node reactive power to amend the value of delt_UA_P- real active power balance of the correct value of the node delt_U_2- node voltage balance is the correct value of the square o

此程序的功能是用c语言实现编译原理课程中的语法分析程序-this procedure is the function of c language compiler theory courses syntax analysis program

一个手机FPS游戏，使用JSR184开发-A mobile phone FPS games, the use of JSR184 Development

在官方网站上下载了2.5版本的myJXTA，配置好窗体后跑了一遍，感觉这个示例程序的功能还是蛮强大的，但是这个程序的API写得比较简单，所以决定自己仔细研究研究~-Download the official site of the 2.5 version of myJXTA, configured form again after the run, I feel the function of the sample or very strong, but this process is relatively simple API written, so carefully studied to determine their own study ~

一个ERP源码,包括进销存/财务/生产制造等系统,已经成功应用于多家单位.- A ERP source code, including sells saves/system and so on financial/production manufacture, already succeeded applies to many units

运放设计的一些注意点，如何实际一个稳定的运放的一些小技巧-OPAMP design point some attention to how real a stable OPAMP some tips

这是我们上《网格计算课程》的讲义，对于想学习网格计算这门新技术的人来说，起到一个指导作用-"grid computing courses" handouts, want to learn this new grid computing technologies in a way, play a guiding role

advnvecd installer in Visual Basic... just file number 4.