vpncmdsys

信道基本特性的仿真程序，包括小尺度衰落信道（频率选择性信道和时间选择性信道）的仿真，分集接收及误码率的仿真。(Channel basic characteristics of the simulation program. including small-scale fading channel (frequency selective channel and time-selective channel) simulation, Diversity reception and BER simulation.)

VB数学运算实例：分解质因数源代码,有需要的下。(VB Math Example: prime factorization source code, there is need for the next.)

修改默认的滚动条样式,类似XP风格,并有动感,()

拟稳平差和秩亏网平差程序，用于计算不稳定点的坐标平差等(ntends stable adjustment and rank deficient network adjustment program, used to calculate the coordinates of the point adjustment, etc. instability)

读取系统日志，获取开关机时间之后做计算工时(After reading hours to do the calculation system logs for switch time)

类似Windows的netstat程序的程序 (An app which is like to windowss netstat)

全国矢量地图大全 shp格式National vector map encyclopedia SHP format national vector map Daquan SHP format national vector map Daquan SHP format(National vector map encyclopedia SHP format national vector map Daquan SHP format national vector map Daquan SHP format)

通过directShow方式进行摄像头视频的抓取(DirectShow way through the video camera crawl)

Pop3客户端接收信件的整个流程： 1。连接到pop3服务器（默认端口110） 2。发送用户名（user） 3。发送密码（pass） 4。查询当前邮箱状态（stat） 5。查询服务器上所有邮件UID列表（UIDL） 6。查询本地所有邮件的UID列表，从而罗列出新邮件列表（本地UID列表是POP3客户端记录在日志文件中的） 7。对所有新邮件查询其大小（LIST） 8。下载所有新邮件（RETR）利用List提供的邮件大小信息 9。如果有必要，对所有新邮件标志为删除（DELE） 10。结束对话（QUIT） 11。解析本地下载邮件。(Pop3 client receives the entire flow of letters: 1. Connect to the pop3 server (default port 110) 2. Send user name (user) 3. Send password (pass) 4. Query current mail status (stat) 5. Query server UID list of all messages (UIDL) 6. Query local UID list of all messages, which set out the new mailing list (local UID is a POP3 client list recorded in the log file) 7. For all new e-mail inquiries about their size (LIST) 8. Download all new messages (RETR) to use List of information provided by message size 9. If necessary, for all new signs for the delete message (DELE) 10. The end of the dialogue (QUIT) 11. Analysis of local download your mail.)

该程序能够较好的仿真出Missive MIMO系统下 信道估计的误码率，及还 有部分的MSE代码，可以供大家参考一下！(This program can better simulate the error rate of channel estimation under Missive MIMO system, and also There are some MSE code that you can refer to!)