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时间同步 VS2005环境编程,通过串口接受到时间协议的数据，同步机器的系统时间-clock service

WIN32API串口通讯程序-WIN32API serial communication program

这是XMODEM传输协议原代码,测试只能证明错误的存在，而不能表明程序中没有错误。 测试的两个作用是：确定程序中缺陷的存在；有助于判断该程序在实际上是否可用。 软件测试最困难的问题之一是知道何时停止测试(When to stop testing? ) 自己测试自己的程序是不可能的。 当一个软件被测出的缺陷数目增加时，更多的未被发现的缺陷存在的概率也随之增加。 -This XMODEM transfer protocol source code, the test can only be proved wrong there and not show anything wrong procedure. The two test role is : procedures for determining the existence of defects; Contribute to the judge whether the procedure can be used in practice. Software testing the most difficult one of the problems is to know when to stop testing (When to stop testing) testing their own procedures is not possible. When a software detected the increase in the number of defects, more undiscovered flaws in the probability has increased.

呼叫阻塞率的计算和仿真：在时间轴上考虑。无论阻塞与否，下一呼叫到达时刻为当前呼叫到达时刻加上服从参数为1/λ的指数分布的呼叫间隔时间。一个呼叫到达时只需要判断呼叫的到达时刻和各个信道服务完成时刻的先后：如果前者比后者中任意一个大，说明至少有一个信道服务完成时刻比此呼叫到达时刻早，即此信道空闲，此时呼叫成功，应该先把此信道下一个服务完成时刻置为当前呼叫到达时刻，再加上服从参数为μ的指数分布的服务时间；反之，如果前者比后者中全部都小，说明所有信道在此呼叫到达后才会结束服务，即当前忙，此呼叫被阻塞掉了-call blocking probability calculation and simulation : the time frame to consider. Whether or not blocked, the next call arrived at the present moment to call time arrived with a subordinate parameters/ index distribution of the call interval. A call arrived only judgment call and the arrival time each channel service has completed a moment : If the former than the latter an arbitrary, and at least one channel is completed service calls than this moment arrived moments earlier, that this channel is idle, call this success, should first get here Channel a moment of complete services for the current call home arrival time, coupled with the parameters obey the exponential distribution services; Conversely, if the former than the latter, all

关于如何产生一个GOLD码的程序，对于在MATLAB中的应用有一定的好处，用户可以根据自己的情况加以改正达到自己的目的-on how to produce a code GOLD procedures for the application of MATLAB there are certain advantages, users can according to its own circumstances be corrected to achieve its goal

practicaly beam anything ifrared with this utility

这是校验位打孔重传的源程序，现发上来供大家学习借鉴。-This is a parity bit punch Retransmission source, fat is up for all to learn from.

内部包含了各种滤波器的设计，并附上了必要的程序说明。-Internal contain a variety of filter design, together with the necessary explanation of the procedures.

7816协议，智能卡专用的协议。包括手机的sim卡之类都属于智能卡。-7816 agreement, smart card exclusive agreement. Including mobile phone SIM cards are like smart cards.

本程序仿真做出了一个RS编码器。运行本软件，可得到一个可视化界面，按界面提示随意输入信息序列，即可对其进行RS编码。一般的RAR解压即可-made an RS encoder. Running the software, will be a visual interface, interface suggested by the random input sequences can be encoded its RS. General RAR can extract